We look at the division of 165990 by 91 
We want to divide 165990 by 91.

Step 1:
If we divide 1 by 91, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 91

On to step 2:
91 goes into 16 0 times with a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Grab the next digit (5) from the dividend, add it to 16, then carry on: 165 / 91

Step 3:
When dividing 165 by 91, we get 1 with a remainder of 74.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 91 from 165, we get 74.
Grab the next digit (9) from the dividend, add it to 74, then carry on: 749 / 91

On to step 4:
91 goes into 749 8 times with a remainder of 21.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Deduct 728 from 749 and we're left with 21.
Include the next digit (9) from the dividend after 21, then repeat: 219 / 91

Going ahead to step 5:
91 can be fit into 219 2 times, resulting in a remainder of 37.
Record the quotient 2 as the next digit in the result. 
Result so far: 182.0
Deduct 182 from 219 and we're left with 37.
Append the next digit (0) from the dividend to 37 and continue with: 370 / 91

On to step 6:
370 divided by 91 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 1824.0
If we take 364 away from 370, 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.

Advancing to step 7:
91 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1824.0
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
600 divided by 91 is 6 with a remainder of 54.
The next digit of our result is 6. 
Result so far: 1824.06
Subtract 546 from 600 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.

Moving on to step 9:
If we divide 540 by 91, we get 5 and a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 1824.065
If we subtract 455 from 540, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 10:
If we divide 850 by 91, we get 9 and a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 1824.0659
If we subtract 819 from 850, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 11:
91 goes into 310 3 times with a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 1824.06593
If we subtract 273 from 310, 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.

On to step 12:
When dividing 370 by 91, we get 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 1824.065934
The remainder is 6 after subtracting 364 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
If we divide 60 by 91, we get 0 and a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1824.065934
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 14:
If we divide 600 by 91, we get 6 and a remainder of 54.
Put 6 as the next digit of the answer. 
Result so far: 1824.06593406
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 1824.06593406 with a remaining 5.4e-08.