We look at the division of 91815 by 77 
Our goal is to divide 91815 by 77.

Going ahead to step 1:
77 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 77

Moving on to step 2:
91 divided by 77 is 1 with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 77 from 91, we get 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 77

On to step 3:
148 divided by 77 is 1 with a remainder of 71.
The next digit of our result is 1. 
Result so far: 11.0
If we take 77 away from 148, we end up with 71.
Take the next digit (1) from the dividend and append it to 71, then repeat: 711 / 77

Going ahead to step 4:
If we divide 711 by 77, we get 9 and a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 119.0
Subtract 693 from 711 to get 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 77

Moving on to step 5:
77 can be fit into 185 2 times, resulting in a remainder of 31.
The next digit of our result is 2. 
Result so far: 1192.0
Subtract 154 from 185 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 6:
If we divide 310 by 77, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 1192.4
Deduct 308 from 310 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
20 divided by 77 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 1192.4
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
If we divide 200 by 77, we get 2 and a remainder of 46.
The next digit of our result is 2. 
Result so far: 1192.402
The remainder is 46 after subtracting 154 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 9:
If we divide 460 by 77, we get 5 and a remainder of 75.
The next digit of our result is 5. 
Result so far: 1192.4025
If we take 385 away from 460, we end up 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.

Moving on to step 10:
77 goes into 750 9 times with a remainder of 57.
Write down 9 as next digit of the result. 
Result so far: 1192.40259
Subtract 693 from 750 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 11:
When dividing 570 by 77, we get 7 with a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 1192.402597
The remainder is 31 after subtracting 539 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 12:
When dividing 310 by 77, we get 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 1192.4025974
Subtracting 308 from 310 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 13:
20 divided by 77 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 1192.4025974
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 1192.4025974 and a remainder of 2e-08.