79781132 ÷ 831 
We want to figure out the number of times 79781132 can be divided by 831.

Step 1:
If we divide 7 by 831, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 831

Going ahead to step 2:
When dividing 79 by 831, we get 0 with a remainder of 79.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 79 and we're left with 79.
Append the next digit (7) from the dividend to 79 and continue with: 797 / 831

On to step 3:
The number 831 fits into 797 0 times, leaving a remainder of 797.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 797 to get 797.
Bring next digit (8) of the dividend behind the 797 and repeat the process: 7978 / 831

Going ahead to step 4:
When dividing 7978 by 831, we get 9 with a remainder of 499.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 7479 away from 7978, we end up with 499.
Append the next digit (1) from the dividend to 499 and continue with: 4991 / 831

Step 5:
If we divide 4991 by 831, we get 6 and a remainder of 5.
The next digit of our result is 6. 
Result so far: 96.0
If we subtract 4986 from 4991, we get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 831

Let's proceed to step 6:
If we divide 51 by 831, we get 0 and a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 960.0
If we take 0 away from 51, we end up with 51.
Include the next digit (3) from the dividend after 51, then repeat: 513 / 831

Advancing to step 7:
When dividing 513 by 831, we get 0 with a remainder of 513.
Put 0 as the next digit of the answer. 
Result so far: 9600.0
Subtract 0 from 513 to get 513.
Include the next digit (2) from the dividend after 513, then repeat: 5132 / 831

Going ahead to step 8:
If we divide 5132 by 831, we get 6 and a remainder of 146.
Write down 6 as next digit of the result. 
Result so far: 96006.0
Subtracting 4986 from 5132 leaves us with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Going ahead to step 9:
When dividing 1460 by 831, we get 1 with a remainder of 629.
Use 1 as the next digit of our solution. 
Result so far: 96006.1
Subtract 831 from 1460 to get 629.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6290, and continue the process.

Going ahead to step 10:
When dividing 6290 by 831, we get 7 with a remainder of 473.
Record the quotient 7 as the next digit in the result. 
Result so far: 96006.17
The remainder is 473 after subtracting 5817 from 6290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4730, and continue the process.

On to step 11:
4730 divided by 831 is 5 with a remainder of 575.
Put 5 as the next digit of the answer. 
Result so far: 96006.175
The remainder is 575 after subtracting 4155 from 4730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

On to step 12:
831 goes into 5750 6 times with a remainder of 764.
The next digit of our result is 6. 
Result so far: 96006.1756
Subtract 4986 from 5750 to get 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

On to step 13:
The number 831 fits into 7640 9 times, leaving a remainder of 161.
The number 9 becomes the next digit in our result. 
Result so far: 96006.17569
If we subtract 7479 from 7640, we get 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Advancing to step 14:
831 goes into 1610 1 times with a remainder of 779.
Use 1 as the next digit of our solution. 
Result so far: 96006.175691
Subtract 831 from 1610 to get 779.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7790, and continue the process.

Moving on to step 15:
831 goes into 7790 9 times with a remainder of 311.
Record the quotient 9 as the next digit in the result. 
Result so far: 96006.1756919
If we take 7479 away from 7790, we end up with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Going ahead to step 16:
When dividing 3110 by 831, we get 3 with a remainder of 617.
Record the quotient 3 as the next digit in the result. 
Result so far: 96006.17569193
The remainder is 617 after subtracting 2493 from 3110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

The final result is 96006.17569193 with a remainder of 6.17e-07.