We're dividing 639990 by 57 
We want to divide 639990 by 57.

Let's proceed to step 1:
57 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 57

Step 2:
If we divide 63 by 57, we get 1 and a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 6 after subtracting 57 from 63.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 57

On to step 3:
69 divided by 57 is 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
The remainder is 12 after subtracting 57 from 69.
Include the next digit (9) from the dividend after 12, then repeat: 129 / 57

Going ahead to step 4:
The number 57 fits into 129 2 times, leaving a remainder of 15.
The next digit of our result is 2. 
Result so far: 112.0
Subtracting 114 from 129 leaves us with 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 57

On to step 5:
159 divided by 57 is 2 with a remainder of 45.
The next digit of our result is 2. 
Result so far: 1122.0
The remainder is 45 after subtracting 114 from 159.
Bring next digit (0) of the dividend behind the 45 and repeat the process: 450 / 57

Let's proceed to step 6:
When dividing 450 by 57, we get 7 with a remainder of 51.
The number 7 becomes the next digit in our result. 
Result so far: 11227.0
Subtract 399 from 450 to 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.

On to step 7:
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: 11227.8
Subtract 456 from 510 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 8:
57 goes into 540 9 times with a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 11227.89
Subtract 513 from 540 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
57 goes into 270 4 times with a remainder of 42.
The next digit of our result is 4. 
Result so far: 11227.894
Subtracting 228 from 270 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 10:
If we divide 420 by 57, we get 7 and a remainder of 21.
The next digit of our result is 7. 
Result so far: 11227.8947
Subtract 399 from 420 to 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.

Moving on to step 11:
57 goes into 210 3 times with a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 11227.89473
The remainder is 39 after subtracting 171 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 12:
57 goes into 390 6 times with a remainder of 48.
The number 6 becomes the next digit in our result. 
Result so far: 11227.894736
The remainder is 48 after subtracting 342 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 13:
480 divided by 57 is 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 11227.8947368
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.

Step 14:
57 can be fit into 240 4 times, resulting in a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 11227.89473684
Subtract 228 from 240 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.

Our division results in 11227.89473684 with a remaining 1.2e-08.