We look at the division of 86815834 by 791 
Our goal is to divide 86815834 by 791.

Advancing to step 1:
The number 791 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 791

Advancing to step 2:
If we divide 86 by 791, we get 0 and a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Take the next digit (8) from the dividend and append it to 86, then repeat: 868 / 791

Advancing to step 3:
791 goes into 868 1 times with a remainder of 77.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 791 from 868 and we're left with 77.
Append the next digit (1) from the dividend to 77 and continue with: 771 / 791

Moving on to step 4:
771 divided by 791 is 0 with a remainder of 771.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 771, we get 771.
Grab the next digit (5) from the dividend, add it to 771, then carry on: 7715 / 791

On to step 5:
If we divide 7715 by 791, we get 9 and a remainder of 596.
Use 9 as the next digit of our solution. 
Result so far: 109.0
The remainder is 596 after subtracting 7119 from 7715.
Take the next digit (8) from the dividend and append it to 596, then repeat: 5968 / 791

Advancing to step 6:
If we divide 5968 by 791, we get 7 and a remainder of 431.
The number 7 becomes the next digit in our result. 
Result so far: 1097.0
If we take 5537 away from 5968, we end up with 431.
Grab the next digit (3) from the dividend, add it to 431, then carry on: 4313 / 791

Moving on to step 7:
The number 791 fits into 4313 5 times, leaving a remainder of 358.
The number 5 becomes the next digit in our result. 
Result so far: 10975.0
If we subtract 3955 from 4313, we get 358.
Bring next digit (4) of the dividend behind the 358 and repeat the process: 3584 / 791

Going ahead to step 8:
791 can be fit into 3584 4 times, resulting in a remainder of 420.
Use 4 as the next digit of our solution. 
Result so far: 109754.0
Deduct 3164 from 3584 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Let's proceed to step 9:
4200 divided by 791 is 5 with a remainder of 245.
Put 5 as the next digit of the answer. 
Result so far: 109754.5
The remainder is 245 after subtracting 3955 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Going ahead to step 10:
2450 divided by 791 is 3 with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 109754.53
Subtract 2373 from 2450 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.

On to step 11:
791 goes into 770 0 times with a remainder of 770.
The number 0 becomes the next digit in our result. 
Result so far: 109754.53
If we take 0 away from 770, we end up with 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7700, and continue the process.

Going ahead to step 12:
If we divide 7700 by 791, we get 9 and a remainder of 581.
Use 9 as the next digit of our solution. 
Result so far: 109754.5309
Deduct 7119 from 7700 and we're left with 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

Going ahead to step 13:
5810 divided by 791 is 7 with a remainder of 273.
Use 7 as the next digit of our solution. 
Result so far: 109754.53097
The remainder is 273 after subtracting 5537 from 5810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

Step 14:
The number 791 fits into 2730 3 times, leaving a remainder of 357.
Record the quotient 3 as the next digit in the result. 
Result so far: 109754.530973
Subtracting 2373 from 2730 leaves us with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Moving on to step 15:
When dividing 3570 by 791, we get 4 with a remainder of 406.
Record the quotient 4 as the next digit in the result. 
Result so far: 109754.5309734
Subtracting 3164 from 3570 leaves us with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Moving on to step 16:
When dividing 4060 by 791, we get 5 with a remainder of 105.
Record the quotient 5 as the next digit in the result. 
Result so far: 109754.53097345
Subtracting 3955 from 4060 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The quotient of the division is 109754.53097345, and the remainder is 1.05e-07.