Long Division Calculator

About this calculator

Long division is one of the most error-prone manual arithmetic processes, since a single mistake bringing down a digit or misjudging how many times the divisor fits derails every step after it, and there's no easy way to spot-check an intermediate step. This calculator takes a dividend and divisor and simulates the long-division algorithm digit by digit, exactly as it's taught in school, rendering it in the traditional bracket layout with the quotient on top and each step's subtraction shown underneath, alongside a detailed table of every bring-down, quotient digit, product and remainder. It also computes the exact decimal expansion — including detecting and labeling a repeating decimal (like 1 ÷ 3 = 0.333...) rather than just cutting it off — and the result is printable and copyable. A divisor of 0 is rejected outright since division by zero is undefined. That makes it useful both for checking a homework answer step-by-step in the format it was taught, and for quickly getting a quotient, remainder and decimal without working through the process by hand.

How to use this

1. 1Enter the dividend, the number being divided.
2. 2Enter the divisor, the number you're dividing by.
3. 3Read the quotient along with the full step-by-step long-division working shown below the result.

Troubleshooting

• The result shows a remainder instead of a clean decimal.

  Both the whole-number quotient with remainder and the decimal-expanded quotient are shown, use whichever form fits what you're solving for.

• Can I divide by a decimal number?

  Enter the divisor as a whole number when possible, if you need to divide by a decimal, multiply both the dividend and divisor by the same power of 10 first to clear the decimal, the result is unchanged.

Frequently asked questions