We look at the division of 836871 by 91 
Our goal is to divide 836871 by 91.

Step 1:
When dividing 8 by 91, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 91

Advancing to step 2:
The number 91 fits into 83 0 times, leaving a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 83, we get 83.
Fetch the next digit (6) from the dividend, attach it to 83 and continue: 836 / 91

Moving on to step 3:
91 goes into 836 9 times with a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 819 from 836 and we're left with 17.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 91

Going ahead to step 4:
91 goes into 178 1 times with a remainder of 87.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Deduct 91 from 178 and we're left with 87.
Fetch the next digit (7) from the dividend, attach it to 87 and continue: 877 / 91

Let's proceed to step 5:
The number 91 fits into 877 9 times, leaving a remainder of 58.
Write down 9 as next digit of the result. 
Result so far: 919.0
If we subtract 819 from 877, we get 58.
Bring next digit (1) of the dividend behind the 58 and repeat the process: 581 / 91

Step 6:
581 divided by 91 is 6 with a remainder of 35.
The number 6 becomes the next digit in our result. 
Result so far: 9196.0
The remainder is 35 after subtracting 546 from 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 7:
When dividing 350 by 91, we get 3 with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 9196.3
Subtract 273 from 350 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 8:
91 can be fit into 770 8 times, resulting in a remainder of 42.
The next digit of our result is 8. 
Result so far: 9196.38
If we subtract 728 from 770, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 9:
91 goes into 420 4 times with a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 9196.384
Deduct 364 from 420 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 10:
91 can be fit into 560 6 times, resulting in a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 9196.3846
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 11:
The number 91 fits into 140 1 times, leaving a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 9196.38461
Subtract 91 from 140 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 12:
If we divide 490 by 91, we get 5 and a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 9196.384615
If we take 455 away from 490, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 13:
350 divided by 91 is 3 with a remainder of 77.
Put 3 as the next digit of the answer. 
Result so far: 9196.3846153
The remainder is 77 after subtracting 273 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 14:
91 can be fit into 770 8 times, resulting in a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 9196.38461538
If we take 728 away from 770, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final result is 9196.38461538 with a remainder of 4.2e-08.