Solve 3121div10

$$3121 \div 10$$

Evaluate

$$\frac{3121}{10}=312.1$$

Steps For Long Division Method

Use the 1^{st} digit 3 from dividend 3121

$$\begin{array}{l}\phantom{10)}\phantom{1}\\10\overline{)3121}\\\end{array}$$

Since 3 is less than 10, use the next digit 1 from dividend 3121 and add 0 to the quotient

$$\begin{array}{l}\phantom{10)}0\phantom{2}\\10\overline{)3121}\\\end{array}$$

Use the 2^{nd} digit 1 from dividend 3121

$$\begin{array}{l}\phantom{10)}0\phantom{3}\\10\overline{)3121}\\\end{array}$$

Find closest multiple of 10 to 31. We see that 3 \times 10 = 30 is the nearest. Now subtract 30 from 31 to get reminder 1. Add 3 to quotient.

$$\begin{array}{l}\phantom{10)}03\phantom{4}\\10\overline{)3121}\\\phantom{10)}\underline{\phantom{}30\phantom{99}}\\\phantom{10)9}1\\\end{array}$$

Use the 3^{rd} digit 2 from dividend 3121

$$\begin{array}{l}\phantom{10)}03\phantom{5}\\10\overline{)3121}\\\phantom{10)}\underline{\phantom{}30\phantom{99}}\\\phantom{10)9}12\\\end{array}$$

Find closest multiple of 10 to 12. We see that 1 \times 10 = 10 is the nearest. Now subtract 10 from 12 to get reminder 2. Add 1 to quotient.

$$\begin{array}{l}\phantom{10)}031\phantom{6}\\10\overline{)3121}\\\phantom{10)}\underline{\phantom{}30\phantom{99}}\\\phantom{10)9}12\\\phantom{10)}\underline{\phantom{9}10\phantom{9}}\\\phantom{10)99}2\\\end{array}$$

Use the 4^{th} digit 1 from dividend 3121

$$\begin{array}{l}\phantom{10)}031\phantom{7}\\10\overline{)3121}\\\phantom{10)}\underline{\phantom{}30\phantom{99}}\\\phantom{10)9}12\\\phantom{10)}\underline{\phantom{9}10\phantom{9}}\\\phantom{10)99}21\\\end{array}$$

Find closest multiple of 10 to 21. We see that 2 \times 10 = 20 is the nearest. Now subtract 20 from 21 to get reminder 1. Add 2 to quotient.

$$\begin{array}{l}\phantom{10)}0312\phantom{8}\\10\overline{)3121}\\\phantom{10)}\underline{\phantom{}30\phantom{99}}\\\phantom{10)9}12\\\phantom{10)}\underline{\phantom{9}10\phantom{9}}\\\phantom{10)99}21\\\phantom{10)}\underline{\phantom{99}20\phantom{}}\\\phantom{10)999}1\\\end{array}$$

Since 1 is less than 10, stop the division. The reminder is 1. The topmost line 0312 is the quotient. Remove all zeros at the start of the quotient to get the actual quotient 312.

$$\text{Quotient: }312 \text{Reminder: }1$$

Factor

$$\frac{3121}{2 \cdot 5} = 312\frac{1}{10} = 312.1$$