We look at the division of 991660 by 57 
We're looking to find how many times 57 goes into 991660.

Step 1:
The number 57 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 57

Going ahead to step 2:
If we divide 99 by 57, we get 1 and a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 57 from 99 and we're left with 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 57

Advancing to step 3:
If we divide 421 by 57, we get 7 and a remainder of 22.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtracting 399 from 421 leaves us with 22.
Grab the next digit (6) from the dividend, add it to 22, then carry on: 226 / 57

Step 4:
When dividing 226 by 57, we get 3 with a remainder of 55.
Record the quotient 3 as the next digit in the result. 
Result so far: 173.0
The remainder is 55 after subtracting 171 from 226.
Fetch the next digit (6) from the dividend, attach it to 55 and continue: 556 / 57

Advancing to step 5:
The number 57 fits into 556 9 times, leaving a remainder of 43.
Record the quotient 9 as the next digit in the result. 
Result so far: 1739.0
If we subtract 513 from 556, we get 43.
Grab the next digit (0) from the dividend, add it to 43, then carry on: 430 / 57

Going ahead to step 6:
57 goes into 430 7 times with a remainder of 31.
The next digit of our result is 7. 
Result so far: 17397.0
Subtracting 399 from 430 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 7:
310 divided by 57 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 17397.5
If we take 285 away from 310, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 8:
If we divide 250 by 57, we get 4 and a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 17397.54
Subtract 228 from 250 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 9:
220 divided by 57 is 3 with a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 17397.543
The remainder is 49 after subtracting 171 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 10:
57 goes into 490 8 times with a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 17397.5438
Subtract 456 from 490 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 11:
57 goes into 340 5 times with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 17397.54385
If we subtract 285 from 340, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 12:
57 can be fit into 550 9 times, resulting in a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 17397.543859
Deduct 513 from 550 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 13:
57 goes into 370 6 times with a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 17397.5438596
Subtracting 342 from 370 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 14:
57 can be fit into 280 4 times, resulting in a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 17397.54385964
If we subtract 228 from 280, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 17397.54385964, with a leftover of 5.2e-08.