The problem is to divide 7583 by 21 using long division. The image shows the first steps of the division, with 75 being divided by 21.

ArithmeticDivisionLong DivisionRemainders
2025/4/17

1. Problem Description

The problem is to divide 7583 by 21 using long division. The image shows the first steps of the division, with 75 being divided by
2
1.

2. Solution Steps

First, we divide 75 by
2

1. $75 \div 21 \approx 3$. So the first digit of the quotient is

3. $3 \times 21 = 63$.

Subtract 63 from 75, which gives 7563=1275 - 63 = 12.
Bring down the next digit, 8, to make the number
1
2

8. Now we divide 128 by

2

1. $128 \div 21 \approx 6$.

6×21=1266 \times 21 = 126.
Subtract 126 from 128, which gives 128126=2128 - 126 = 2.
Bring down the last digit, 3, to make the number
2

3. Now we divide 23 by

2

1. $23 \div 21 = 1$.

1×21=211 \times 21 = 21.
Subtract 21 from 23, which gives 2321=223 - 21 = 2.
The remainder is

2. Therefore, $7583 \div 21 = 361$ with a remainder of

2.

3. Final Answer

7583÷21=361R27583 \div 21 = 361 R 2