Long division is the way to divide larger numbers without a calculator. By fifth grade you know how to divide by a one-digit number; the next step is to divide by a two-digit divisor like 23, 56 or 99. The recipe is exactly the same — you just have to estimate each digit of the quotient a little more carefully.
Take 1234:56. We pull off the smallest left-hand chunk of 1234 that is at least 56 — that is 123. Then 123:56=2 (because 2×56=112 and 3×56=168 which is too big). Subtract: 123−112=11. Bring down the next digit, 4: now we have 114. And 114:56=2 again, with 114−112=2 left over. So 1234:56=22 remainder 2.
1234 : 56 = 22 r. 2
112
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114
112
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2
Why is this useful?
Long division shows up wherever you want to share something equally or to find how many times one number fits into another. It is also a foundation for working with fractions, decimals, and percentages later on.
Difficulty levels
The interactive exercise generates problems at three levels — they all use a two-digit divisor:
medium — 3-digit dividend, 2-digit quotient (two division steps).
hard — 4-digit dividend, 3-digit quotient (three division steps).
Practise
When you are ready, open the interactive exercise:
Long division by a two-digit number – generates a two-digit divisor and a 2- to 4-digit dividend, with empty fields for every multiple of the divisor and for the final remainder.