We look at the division of 399159 by 57 
We want to figure out the number of times 399159 can be divided by 57.

Moving on to step 1:
57 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 57

Step 2:
When dividing 39 by 57, we get 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 57

Moving on to step 3:
If we divide 399 by 57, we get 7 and a remainder of 0.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 0 after subtracting 399 from 399.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 57

Moving on to step 4:
57 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 70.0
If we take 0 away from 1, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 57

Step 5:
57 goes into 15 0 times with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 700.0
If we take 0 away from 15, we end up with 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 57

Moving on to step 6:
If we divide 159 by 57, we get 2 and a remainder of 45.
The number 2 becomes the next digit in our result. 
Result so far: 7002.0
Deduct 114 from 159 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 7:
57 goes into 450 7 times with a remainder of 51.
Use 7 as the next digit of our solution. 
Result so far: 7002.7
If we subtract 399 from 450, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 8:
If we divide 510 by 57, we get 8 and a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 7002.78
Subtracting 456 from 510 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 9:
The number 57 fits into 540 9 times, leaving a remainder of 27.
The next digit of our result is 9. 
Result so far: 7002.789
Subtracting 513 from 540 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 10:
If we divide 270 by 57, we get 4 and a remainder of 42.
The number 4 becomes the next digit in our result. 
Result so far: 7002.7894
The remainder is 42 after subtracting 228 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 11:
420 divided by 57 is 7 with a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 7002.78947
If we subtract 399 from 420, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 12:
57 goes into 210 3 times with a remainder of 39.
Use 3 as the next digit of our solution. 
Result so far: 7002.789473
If we take 171 away from 210, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 13:
When dividing 390 by 57, we get 6 with a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 7002.7894736
Subtracting 342 from 390 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 14:
The number 57 fits into 480 8 times, leaving a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 7002.78947368
Deduct 456 from 480 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 7002.78947368 with a balance of 2.4e-08.