687231 ÷ 91 
We want to divide 687231 by 91.

Step 1:
91 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 91

Advancing to step 2:
68 divided by 91 is 0 with a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Append the next digit (7) from the dividend to 68 and continue with: 687 / 91

Going ahead to step 3:
When dividing 687 by 91, we get 7 with a remainder of 50.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 637 from 687 leaves us with 50.
Grab the next digit (2) from the dividend, add it to 50, then carry on: 502 / 91

Moving on to step 4:
91 goes into 502 5 times with a remainder of 47.
The number 5 becomes the next digit in our result. 
Result so far: 75.0
If we take 455 away from 502, we end up with 47.
Grab the next digit (3) from the dividend, add it to 47, then carry on: 473 / 91

Advancing to step 5:
When dividing 473 by 91, we get 5 with a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 755.0
Subtracting 455 from 473 leaves us with 18.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 91

Going ahead to step 6:
If we divide 181 by 91, we get 1 and a remainder of 90.
Put 1 as the next digit of the answer. 
Result so far: 7551.0
Subtract 91 from 181 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 7:
If we divide 900 by 91, we get 9 and a remainder of 81.
The next digit of our result is 9. 
Result so far: 7551.9
Subtract 819 from 900 to get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 8:
810 divided by 91 is 8 with a remainder of 82.
Put 8 as the next digit of the answer. 
Result so far: 7551.98
If we subtract 728 from 810, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Advancing to step 9:
820 divided by 91 is 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 7551.989
Deduct 819 from 820 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 10:
10 divided by 91 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 7551.989
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 11:
If we divide 100 by 91, we get 1 and a remainder of 9.
The next digit of our result is 1. 
Result so far: 7551.98901
If we take 91 away from 100, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 12:
90 divided by 91 is 0 with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 7551.98901
Subtract 0 from 90 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 13:
The number 91 fits into 900 9 times, leaving a remainder of 81.
The next digit of our result is 9. 
Result so far: 7551.9890109
Subtract 819 from 900 to get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 14:
810 divided by 91 is 8 with a remainder of 82.
The next digit of our result is 8. 
Result so far: 7551.98901098
If we subtract 728 from 810, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

After the division, we end up with 7551.98901098 and a remainder of 8.2e-08.