We divide 488576 by 21
Let's see how many times 21 fits into 488576.

Going ahead to step 1:
4 divided by 21 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 21

Let's proceed to step 2:
21 goes into 48 2 times with a remainder of 6.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 42 from 48, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 21

Moving on to step 3:
The number 21 fits into 68 3 times, leaving a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 63 away from 68, we end up with 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 21

On to step 4:
55 divided by 21 is 2 with a remainder of 13.
Use 2 as the next digit of our solution. 
Result so far: 232.0
Subtract 42 from 55 to get 13.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 21

Let's proceed to step 5:
When dividing 137 by 21, we get 6 with a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 2326.0
Subtracting 126 from 137 leaves us with 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 21

Advancing to step 6:
21 can be fit into 116 5 times, resulting in a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 23265.0
If we subtract 105 from 116, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
If we divide 110 by 21, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 23265.5
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 23265.52
The remainder is 8 after subtracting 42 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
21 goes into 80 3 times with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 23265.523
Deduct 63 from 80 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 10:
21 can be fit into 170 8 times, resulting in a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 23265.5238
Deduct 168 from 170 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 11:
20 divided by 21 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 23265.5238
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
If we divide 200 by 21, we get 9 and a remainder of 11.
The next digit of our result is 9. 
Result so far: 23265.523809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 13:
110 divided by 21 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 23265.5238095
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 14:
The number 21 fits into 50 2 times, leaving a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 23265.52380952
Subtracting 42 from 50 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 23265.52380952 with a remaining 8e-09.