Long Division Calculator
Divide any two whole numbers and see the full long-division worksheet — quotient, remainder and every step.
How to use this calculator
Type the number you want to divide (the dividend) into the first box and the number you are dividing by (the divisor) into the second box, then press Calculate. The tool returns the quotient (the answer), the remainder (what is left over), and a worksheet that mirrors how you would solve it by hand on paper. Reading the worksheet from top to bottom shows exactly where each digit of the answer comes from, which makes it useful for checking homework rather than just getting a number.
The formula explained
Long division rests on one simple relationship between the four parts:
dividend = divisor × quotient + remainder
The method works left to right. You take the smallest group of leading digits of the dividend that the divisor fits into, write how many times it fits above the line, multiply that digit by the divisor, and subtract to find what is left. You then bring down the next digit of the dividend and repeat. The process ends when there are no digits left to bring down; whatever is left at that point is the remainder. Because every step only ever divides, multiplies and subtracts small numbers, long division lets you handle very large dividends without a calculator.
A worked example
Take 4824 ÷ 12. Twelve goes into 48 four times (4 × 12 = 48, remainder 0). Bring down the 2: twelve goes into 02 zero times. Bring down the 4: twelve goes into 24 two times (2 × 12 = 24, remainder 0). Reading the digits across the top gives a quotient of 402 with a remainder of 0, so the division is exact. You can verify it with the formula: 12 × 402 + 0 = 4824. The worksheet above reproduces these same steps for whatever numbers you enter.
Frequently asked questions
How do you do long division step by step?
Divide the leading digits of the dividend by the divisor, write the result above the line, multiply back and subtract, then bring down the next digit and repeat until none remain. The final leftover value is the remainder.
What is the remainder in long division?
It is the amount left over once the divisor no longer fits into the running value. A remainder of zero means the division is exact and the divisor is a factor of the dividend.
Can it divide large numbers?
Yes — enter any whole-number dividend and divisor and the calculator builds the complete worksheet, however many digits are involved.