23679891 ÷ 831 
Let's see how many times 831 fits into 23679891.

Going ahead to step 1:
The number 831 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 831

Going ahead to step 2:
831 goes into 23 0 times with a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 23, we end up with 23.
Append the next digit (6) from the dividend to 23 and continue with: 236 / 831

Moving on to step 3:
If we divide 236 by 831, we get 0 and a remainder of 236.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 236, we get 236.
Grab the next digit (7) from the dividend, add it to 236, then carry on: 2367 / 831

Moving on to step 4:
831 can be fit into 2367 2 times, resulting in a remainder of 705.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 1662 from 2367 to get 705.
Bring next digit (9) of the dividend behind the 705 and repeat the process: 7059 / 831

On to step 5:
831 can be fit into 7059 8 times, resulting in a remainder of 411.
Write down 8 as next digit of the result. 
Result so far: 28.0
Subtract 6648 from 7059 to get 411.
Take the next digit (8) from the dividend and append it to 411, then repeat: 4118 / 831

Moving on to step 6:
When dividing 4118 by 831, we get 4 with a remainder of 794.
Write down 4 as next digit of the result. 
Result so far: 284.0
Subtracting 3324 from 4118 leaves us with 794.
Include the next digit (9) from the dividend after 794, then repeat: 7949 / 831

Advancing to step 7:
7949 divided by 831 is 9 with a remainder of 470.
Put 9 as the next digit of the answer. 
Result so far: 2849.0
Deduct 7479 from 7949 and we're left with 470.
Grab the next digit (1) from the dividend, add it to 470, then carry on: 4701 / 831

On to step 8:
831 can be fit into 4701 5 times, resulting in a remainder of 546.
Record the quotient 5 as the next digit in the result. 
Result so far: 28495.0
Subtracting 4155 from 4701 leaves us with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Going ahead to step 9:
The number 831 fits into 5460 6 times, leaving a remainder of 474.
The number 6 becomes the next digit in our result. 
Result so far: 28495.6
Subtracting 4986 from 5460 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Moving on to step 10:
831 goes into 4740 5 times with a remainder of 585.
Use 5 as the next digit of our solution. 
Result so far: 28495.65
If we subtract 4155 from 4740, we get 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Let's proceed to step 11:
831 can be fit into 5850 7 times, resulting in a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 28495.657
Deduct 5817 from 5850 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 12:
831 can be fit into 330 0 times, resulting in a remainder of 330.
Use 0 as the next digit of our solution. 
Result so far: 28495.657
Subtract 0 from 330 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 13:
3300 divided by 831 is 3 with a remainder of 807.
The number 3 becomes the next digit in our result. 
Result so far: 28495.65703
If we take 2493 away from 3300, we end up with 807.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8070, and continue the process.

Going ahead to step 14:
8070 divided by 831 is 9 with a remainder of 591.
The number 9 becomes the next digit in our result. 
Result so far: 28495.657039
If we subtract 7479 from 8070, we get 591.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5910, and continue the process.

Going ahead to step 15:
5910 divided by 831 is 7 with a remainder of 93.
The next digit of our result is 7. 
Result so far: 28495.6570397
Deduct 5817 from 5910 and we're left with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Moving on to step 16:
When dividing 930 by 831, we get 1 with a remainder of 99.
Write down 1 as next digit of the result. 
Result so far: 28495.65703971
If we subtract 831 from 930, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

The final outcome is 28495.65703971, with a leftover of 9.9e-08.