We look at the division of 91531005 by 770 
Our goal is to divide 91531005 by 770.

Going ahead to step 1:
If we divide 9 by 770, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 770

Moving on to step 2:
770 can be fit into 91 0 times, resulting in a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Append the next digit (5) from the dividend to 91 and continue with: 915 / 770

Let's proceed to step 3:
915 divided by 770 is 1 with a remainder of 145.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 770 from 915 and we're left with 145.
Grab the next digit (3) from the dividend, add it to 145, then carry on: 1453 / 770

Let's proceed to step 4:
770 can be fit into 1453 1 times, resulting in a remainder of 683.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 770 from 1453 leaves us with 683.
Bring next digit (1) of the dividend behind the 683 and repeat the process: 6831 / 770

Going ahead to step 5:
770 goes into 6831 8 times with a remainder of 671.
Write down 8 as next digit of the result. 
Result so far: 118.0
If we take 6160 away from 6831, we end up with 671.
Take the next digit (0) from the dividend and append it to 671, then repeat: 6710 / 770

Let's proceed to step 6:
770 can be fit into 6710 8 times, resulting in a remainder of 550.
The number 8 becomes the next digit in our result. 
Result so far: 1188.0
If we take 6160 away from 6710, we end up with 550.
Grab the next digit (0) from the dividend, add it to 550, then carry on: 5500 / 770

Step 7:
If we divide 5500 by 770, we get 7 and a remainder of 110.
Write down 7 as next digit of the result. 
Result so far: 11887.0
If we subtract 5390 from 5500, we get 110.
Append the next digit (5) from the dividend to 110 and continue with: 1105 / 770

Moving on to step 8:
1105 divided by 770 is 1 with a remainder of 335.
Use 1 as the next digit of our solution. 
Result so far: 118871.0
If we subtract 770 from 1105, we get 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Moving on to step 9:
The number 770 fits into 3350 4 times, leaving a remainder of 270.
Put 4 as the next digit of the answer. 
Result so far: 118871.4
Deduct 3080 from 3350 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 10:
2700 divided by 770 is 3 with a remainder of 390.
Put 3 as the next digit of the answer. 
Result so far: 118871.43
Deduct 2310 from 2700 and we're left with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 11:
770 goes into 3900 5 times with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 118871.435
If we take 3850 away from 3900, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
If we divide 500 by 770, we get 0 and a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 118871.435
If we subtract 0 from 500, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Let's proceed to step 13:
The number 770 fits into 5000 6 times, leaving a remainder of 380.
Write down 6 as next digit of the result. 
Result so far: 118871.43506
If we take 4620 away from 5000, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 14:
The number 770 fits into 3800 4 times, leaving a remainder of 720.
Record the quotient 4 as the next digit in the result. 
Result so far: 118871.435064
Deduct 3080 from 3800 and we're left with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 15:
If we divide 7200 by 770, we get 9 and a remainder of 270.
The number 9 becomes the next digit in our result. 
Result so far: 118871.4350649
Subtract 6930 from 7200 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

On to step 16:
770 can be fit into 2700 3 times, resulting in a remainder of 390.
Use 3 as the next digit of our solution. 
Result so far: 118871.43506493
Subtracting 2310 from 2700 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

The final outcome is 118871.43506493, with a leftover of 3.9e-07.