Evaluate
\frac{7}{2}=3.5
Factor
\frac{7}{2} = 3\frac{1}{2} = 3.5
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\begin{array}{l}\phantom{18)}\phantom{1}\\18\overline{)63}\\\end{array}
Use the 1^{st} digit 6 from dividend 63
\begin{array}{l}\phantom{18)}0\phantom{2}\\18\overline{)63}\\\end{array}
Since 6 is less than 18, use the next digit 3 from dividend 63 and add 0 to the quotient
\begin{array}{l}\phantom{18)}0\phantom{3}\\18\overline{)63}\\\end{array}
Use the 2^{nd} digit 3 from dividend 63
\begin{array}{l}\phantom{18)}03\phantom{4}\\18\overline{)63}\\\phantom{18)}\underline{\phantom{}54\phantom{}}\\\phantom{18)9}9\\\end{array}
Find closest multiple of 18 to 63. We see that 3 \times 18 = 54 is the nearest. Now subtract 54 from 63 to get reminder 9. Add 3 to quotient.
\text{Quotient: }3 \text{Reminder: }9
Since 9 is less than 18, stop the division. The reminder is 9. The topmost line 03 is the quotient. Remove all zeros at the start of the quotient to get the actual quotient 3.
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}