We're dividing 91701990 by 91 
Our goal is to divide 91701990 by 91.

Going ahead to step 1:
9 divided by 91 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 91

Advancing to step 2:
When dividing 91 by 91, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 91 away from 91, we end up with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 91

Advancing to step 3:
7 divided by 91 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 91

Let's proceed to step 4:
The number 91 fits into 70 0 times, leaving a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 100.0
If we subtract 0 from 70, we get 70.
Take the next digit (1) from the dividend and append it to 70, then repeat: 701 / 91

Going ahead to step 5:
701 divided by 91 is 7 with a remainder of 64.
Record the quotient 7 as the next digit in the result. 
Result so far: 1007.0
Subtracting 637 from 701 leaves us with 64.
Append the next digit (9) from the dividend to 64 and continue with: 649 / 91

Moving on to step 6:
When dividing 649 by 91, we get 7 with a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 10077.0
If we subtract 637 from 649, we get 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 91

Moving on to step 7:
The number 91 fits into 129 1 times, leaving a remainder of 38.
The next digit of our result is 1. 
Result so far: 100771.0
If we subtract 91 from 129, we get 38.
Grab the next digit (0) from the dividend, add it to 38, then carry on: 380 / 91

Moving on to step 8:
The number 91 fits into 380 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 1007714.0
Subtracting 364 from 380 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
When dividing 160 by 91, we get 1 with a remainder of 69.
Write down 1 as next digit of the result. 
Result so far: 1007714.1
Subtract 91 from 160 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 10:
91 can be fit into 690 7 times, resulting in a remainder of 53.
The next digit of our result is 7. 
Result so far: 1007714.17
If we take 637 away from 690, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 11:
When dividing 530 by 91, we get 5 with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 1007714.175
Subtracting 455 from 530 leaves us 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.

Step 12:
If we divide 750 by 91, we get 8 and a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 1007714.1758
Subtract 728 from 750 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.

Going ahead to step 13:
220 divided by 91 is 2 with a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 1007714.17582
Deduct 182 from 220 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 14:
380 divided by 91 is 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 1007714.175824
The remainder is 16 after subtracting 364 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 15:
160 divided by 91 is 1 with a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 1007714.1758241
If we subtract 91 from 160, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 16:
If we divide 690 by 91, we get 7 and a remainder of 53.
Record the quotient 7 as the next digit in the result. 
Result so far: 1007714.17582417
If we take 637 away from 690, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

The final result is 1007714.17582417 with a remainder of 5.3e-08.