Let's divide 579651 by 21
Let's see how many times 21 fits into 579651.

On to step 1:
21 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 21

Going ahead to step 2:
If we divide 57 by 21, we get 2 and a remainder of 15.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 42 away from 57, we end up with 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 21

Step 3:
21 can be fit into 159 7 times, resulting in a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Subtracting 147 from 159 leaves us with 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 21

Going ahead to step 4:
If we divide 126 by 21, we get 6 and a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 276.0
Subtract 126 from 126 to get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 21

Step 5:
5 divided by 21 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 2760.0
Subtract 0 from 5 to get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 21

Going ahead to step 6:
21 goes into 51 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 27602.0
If we take 42 away from 51, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
90 divided by 21 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 27602.4
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
21 goes into 60 2 times with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 27602.42
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
21 goes into 180 8 times with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 27602.428
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 10:
If we divide 120 by 21, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 27602.4285
If we subtract 105 from 120, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 11:
When dividing 150 by 21, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 27602.42857
If we subtract 147 from 150, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 12:
21 goes into 30 1 times with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 27602.428571
The remainder is 9 after subtracting 21 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 13:
90 divided by 21 is 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 27602.4285714
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 14:
21 goes into 60 2 times with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 27602.42857142
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 27602.42857142 with a balance of 1.8e-08.