817983 divided by 91 
We want to figure out the number of times 817983 can be divided by 91.

Advancing to step 1:
If we divide 8 by 91, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 91

On to step 2:
When dividing 81 by 91, we get 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Append the next digit (7) from the dividend to 81 and continue with: 817 / 91

Going ahead to step 3:
91 goes into 817 8 times with a remainder of 89.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 89 after subtracting 728 from 817.
Grab the next digit (9) from the dividend, add it to 89, then carry on: 899 / 91

Step 4:
91 can be fit into 899 9 times, resulting in a remainder of 80.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
If we subtract 819 from 899, we get 80.
Include the next digit (8) from the dividend after 80, then repeat: 808 / 91

Let's proceed to step 5:
If we divide 808 by 91, we get 8 and a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 898.0
Subtract 728 from 808 to get 80.
Fetch the next digit (3) from the dividend, attach it to 80 and continue: 803 / 91

Moving on to step 6:
803 divided by 91 is 8 with a remainder of 75.
Record the quotient 8 as the next digit in the result. 
Result so far: 8988.0
Subtracting 728 from 803 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.

On to step 7:
When dividing 750 by 91, we get 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 8988.8
The remainder is 22 after subtracting 728 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 8:
220 divided by 91 is 2 with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 8988.82
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.

Step 9:
91 can be fit into 380 4 times, resulting in a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 8988.824
Deduct 364 from 380 and we're left 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 10:
91 can be fit into 160 1 times, resulting in a remainder of 69.
Use 1 as the next digit of our solution. 
Result so far: 8988.8241
Subtracting 91 from 160 leaves us with 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 11:
91 can be fit into 690 7 times, resulting in a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 8988.82417
Subtracting 637 from 690 leaves us 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.

Moving on to step 12:
If we divide 530 by 91, we get 5 and a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 8988.824175
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.

Advancing to step 13:
When dividing 750 by 91, we get 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 8988.8241758
If we subtract 728 from 750, we 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.

Let's proceed to step 14:
When dividing 220 by 91, we get 2 with a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 8988.82417582
The remainder is 38 after subtracting 182 from 220.
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 8988.82417582 with a remaining 3.8e-08.