Evaluate
\frac{19643}{2508}\approx 7.832137161
Factor
\frac{13 \cdot 1511}{2 ^ {2} \cdot 3 \cdot 11 \cdot 19} = 7\frac{2087}{2508} = 7.832137161084529
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\begin{array}{l}\phantom{2508)}\phantom{1}\\2508\overline{)19643}\\\end{array}
Use the 1^{st} digit 1 from dividend 19643
\begin{array}{l}\phantom{2508)}0\phantom{2}\\2508\overline{)19643}\\\end{array}
Since 1 is less than 2508, use the next digit 9 from dividend 19643 and add 0 to the quotient
\begin{array}{l}\phantom{2508)}0\phantom{3}\\2508\overline{)19643}\\\end{array}
Use the 2^{nd} digit 9 from dividend 19643
\begin{array}{l}\phantom{2508)}00\phantom{4}\\2508\overline{)19643}\\\end{array}
Since 19 is less than 2508, use the next digit 6 from dividend 19643 and add 0 to the quotient
\begin{array}{l}\phantom{2508)}00\phantom{5}\\2508\overline{)19643}\\\end{array}
Use the 3^{rd} digit 6 from dividend 19643
\begin{array}{l}\phantom{2508)}000\phantom{6}\\2508\overline{)19643}\\\end{array}
Since 196 is less than 2508, use the next digit 4 from dividend 19643 and add 0 to the quotient
\begin{array}{l}\phantom{2508)}000\phantom{7}\\2508\overline{)19643}\\\end{array}
Use the 4^{th} digit 4 from dividend 19643
\begin{array}{l}\phantom{2508)}0000\phantom{8}\\2508\overline{)19643}\\\end{array}
Since 1964 is less than 2508, use the next digit 3 from dividend 19643 and add 0 to the quotient
\begin{array}{l}\phantom{2508)}0000\phantom{9}\\2508\overline{)19643}\\\end{array}
Use the 5^{th} digit 3 from dividend 19643
\begin{array}{l}\phantom{2508)}00007\phantom{10}\\2508\overline{)19643}\\\phantom{2508)}\underline{\phantom{}17556\phantom{}}\\\phantom{2508)9}2087\\\end{array}
Find closest multiple of 2508 to 19643. We see that 7 \times 2508 = 17556 is the nearest. Now subtract 17556 from 19643 to get reminder 2087. Add 7 to quotient.
\text{Quotient: }7 \text{Reminder: }2087
Since 2087 is less than 2508, stop the division. The reminder is 2087. The topmost line 00007 is the quotient. Remove all zeros at the start of the quotient to get the actual quotient 7.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}