17991 divided by 83 
We're looking to find how many times 83 goes into 17991.

Moving on to step 1:
1 divided by 83 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 83

On to step 2:
83 can be fit into 17 0 times, resulting in a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 83

Moving on to step 3:
83 goes into 179 2 times with a remainder of 13.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 13 after subtracting 166 from 179.
Include the next digit (9) from the dividend after 13, then repeat: 139 / 83

Step 4:
The number 83 fits into 139 1 times, leaving a remainder of 56.
The next digit of our result is 1. 
Result so far: 21.0
Deduct 83 from 139 and we're left with 56.
Bring next digit (1) of the dividend behind the 56 and repeat the process: 561 / 83

Going ahead to step 5:
When dividing 561 by 83, we get 6 with a remainder of 63.
Write down 6 as next digit of the result. 
Result so far: 216.0
If we take 498 away from 561, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 6:
630 divided by 83 is 7 with a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 216.7
The remainder is 49 after subtracting 581 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 7:
83 goes into 490 5 times with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 216.75
If we take 415 away from 490, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 8:
The number 83 fits into 750 9 times, leaving a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 216.759
If we subtract 747 from 750, 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 9:
When dividing 30 by 83, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 216.759
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
The number 83 fits into 300 3 times, leaving a remainder of 51.
Record the quotient 3 as the next digit in the result. 
Result so far: 216.75903
Subtracting 249 from 300 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 11:
83 goes into 510 6 times with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 216.759036
Subtracting 498 from 510 leaves us 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.

On to step 12:
The number 83 fits into 120 1 times, leaving a remainder of 37.
The next digit of our result is 1. 
Result so far: 216.7590361
If we subtract 83 from 120, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 13:
If we divide 370 by 83, we get 4 and a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 216.75903614
The remainder is 38 after subtracting 332 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Our division results in 216.75903614 with a remaining 3.8e-08.