Let's divide 81091107 by 931
Our goal is to divide 81091107 by 931.

Step 1:
931 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 931

Step 2:
931 can be fit into 81 0 times, resulting in a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 931

On to step 3:
If we divide 810 by 931, we get 0 and a remainder of 810.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 810 leaves us with 810.
Grab the next digit (9) from the dividend, add it to 810, then carry on: 8109 / 931

Moving on to step 4:
931 goes into 8109 8 times with a remainder of 661.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 661 after subtracting 7448 from 8109.
Fetch the next digit (1) from the dividend, attach it to 661 and continue: 6611 / 931

Going ahead to step 5:
If we divide 6611 by 931, we get 7 and a remainder of 94.
The next digit of our result is 7. 
Result so far: 87.0
If we subtract 6517 from 6611, we get 94.
Fetch the next digit (1) from the dividend, attach it to 94 and continue: 941 / 931

Step 6:
941 divided by 931 is 1 with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 871.0
Subtract 931 from 941 to get 10.
Fetch the next digit (0) from the dividend, attach it to 10 and continue: 100 / 931

Going ahead to step 7:
When dividing 100 by 931, we get 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 8710.0
The remainder is 100 after subtracting 0 from 100.
Fetch the next digit (7) from the dividend, attach it to 100 and continue: 1007 / 931

On to step 8:
931 can be fit into 1007 1 times, resulting in a remainder of 76.
Put 1 as the next digit of the answer. 
Result so far: 87101.0
Subtracting 931 from 1007 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 9:
If we divide 760 by 931, we get 0 and a remainder of 760.
The number 0 becomes the next digit in our result. 
Result so far: 87101.0
Subtract 0 from 760 to get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Moving on to step 10:
931 can be fit into 7600 8 times, resulting in a remainder of 152.
Use 8 as the next digit of our solution. 
Result so far: 87101.08
The remainder is 152 after subtracting 7448 from 7600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 11:
931 goes into 1520 1 times with a remainder of 589.
Put 1 as the next digit of the answer. 
Result so far: 87101.081
Subtracting 931 from 1520 leaves us with 589.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5890, and continue the process.

Step 12:
931 can be fit into 5890 6 times, resulting in a remainder of 304.
Write down 6 as next digit of the result. 
Result so far: 87101.0816
Subtract 5586 from 5890 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Moving on to step 13:
The number 931 fits into 3040 3 times, leaving a remainder of 247.
The number 3 becomes the next digit in our result. 
Result so far: 87101.08163
Deduct 2793 from 3040 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Moving on to step 14:
If we divide 2470 by 931, we get 2 and a remainder of 608.
The number 2 becomes the next digit in our result. 
Result so far: 87101.081632
If we take 1862 away from 2470, we end up with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Advancing to step 15:
If we divide 6080 by 931, we get 6 and a remainder of 494.
The number 6 becomes the next digit in our result. 
Result so far: 87101.0816326
Deduct 5586 from 6080 and we're left with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Going ahead to step 16:
The number 931 fits into 4940 5 times, leaving a remainder of 285.
Put 5 as the next digit of the answer. 
Result so far: 87101.08163265
The remainder is 285 after subtracting 4655 from 4940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Our division results in 87101.08163265 with a remaining 2.85e-07.