What is it?
The Long Division Calculator shows a long division worked out step by step, the way it is taught in school. It gives the quotient, the remainder and the answer as a decimal.
Who is it for?
Primary and middle-school students learning division, and parents helping with homework.
How to use it
Enter the Dividend (number to divide) and the Divisor. The answer appears as you type; there is no Calculate button. Tap Copy result to copy it, or Share on WhatsApp to send it.
Reading the steps
- Divide: how many times the divisor fits into the current part.
- Multiply: that digit × divisor.
- Subtract: from the current part.
- Bring down the next digit and repeat.
Writing the answer
- As quotient and remainder: 157 ÷ 12 = 13 remainder 1.
- As a mixed number: 13 1/12.
- As a decimal: 13.0833…
Check: quotient × divisor + remainder = dividend (13 × 12 + 1 = 157). Teachers often want this check written below the working.
Worked example: 845 ÷ 6
- 6 into 8 goes 1 time (6); 8 − 6 = 2. Bring down 4 → 24.
- 6 into 24 goes 4 times (24); remainder 0. Bring down 5 → 5.
- 6 into 5 goes 0 times; remainder 5.
- Answer: 140 remainder 5, or 140.833…
Common mistakes
- Forgetting the 0 when the divisor doesn’t fit (the 0 in 140 above).
- Bringing down two digits at once.
- A remainder larger than the divisor means the step’s digit was too small.
Errors and how to fix them
- “Use whole numbers, with a divisor above 0”: no decimals; can’t divide by 0.
Open the tool: Long Division Calculator
Still stuck?
Contact support. Tell us which tool or page you were using, what you tapped, what you saw, and your phone or computer and browser (for example: Android phone, Chrome). We reply by email.
Questions, or an error not listed here?
Tell us in the comments: what you were doing, the exact message you saw, and your device and browser. We read every comment and add new fixes to this article.