Let's divide 579057 by 21
Let's see how many times 21 fits into 579057.

Advancing to step 1:
If we divide 5 by 21, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 21

Let's proceed to step 2:
If we divide 57 by 21, we get 2 and a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 42 from 57 leaves us with 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 21

Moving on to step 3:
When dividing 159 by 21, we get 7 with a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
If we subtract 147 from 159, we get 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 21

Going ahead to step 4:
When dividing 120 by 21, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 275.0
Subtract 105 from 120 to get 15.
Bring next digit (5) of the dividend behind the 15 and repeat the process: 155 / 21

Advancing to step 5:
155 divided by 21 is 7 with a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 2757.0
If we take 147 away from 155, we end up with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 21

Moving on to step 6:
When dividing 87 by 21, we get 4 with a remainder of 3.
Put 4 as the next digit of the answer. 
Result so far: 27574.0
If we subtract 84 from 87, 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.

On to step 7:
When dividing 30 by 21, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 27574.1
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 8:
If we divide 90 by 21, we get 4 and a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 27574.14
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 9:
21 goes into 60 2 times with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 27574.142
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 10:
21 can be fit into 180 8 times, resulting in a remainder of 12.
The next digit of our result is 8. 
Result so far: 27574.1428
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 11:
21 can be fit into 120 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 27574.14285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 12:
21 goes into 150 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 27574.142857
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 13:
21 goes into 30 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 27574.1428571
Subtracting 21 from 30 leaves us 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.

Going ahead to step 14:
When dividing 90 by 21, we get 4 with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 27574.14285714
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

In conclusion, the division gives 27574.14285714 with a balance of 6e-09.