65509923 ÷ 831 
We want to figure out the number of times 65509923 can be divided by 831.

Advancing to step 1:
If we divide 6 by 831, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 831

Going ahead to step 2:
If we divide 65 by 831, we get 0 and a remainder of 65.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 65 leaves us with 65.
Take the next digit (5) from the dividend and append it to 65, then repeat: 655 / 831

Going ahead to step 3:
The number 831 fits into 655 0 times, leaving a remainder of 655.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 655 and we're left with 655.
Include the next digit (0) from the dividend after 655, then repeat: 6550 / 831

Let's proceed to step 4:
831 goes into 6550 7 times with a remainder of 733.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 733 after subtracting 5817 from 6550.
Grab the next digit (9) from the dividend, add it to 733, then carry on: 7339 / 831

Let's proceed to step 5:
831 can be fit into 7339 8 times, resulting in a remainder of 691.
Write down 8 as next digit of the result. 
Result so far: 78.0
If we subtract 6648 from 7339, we get 691.
Take the next digit (9) from the dividend and append it to 691, then repeat: 6919 / 831

Advancing to step 6:
6919 divided by 831 is 8 with a remainder of 271.
Use 8 as the next digit of our solution. 
Result so far: 788.0
If we take 6648 away from 6919, we end up with 271.
Grab the next digit (2) from the dividend, add it to 271, then carry on: 2712 / 831

Going ahead to step 7:
831 can be fit into 2712 3 times, resulting in a remainder of 219.
The number 3 becomes the next digit in our result. 
Result so far: 7883.0
The remainder is 219 after subtracting 2493 from 2712.
Grab the next digit (3) from the dividend, add it to 219, then carry on: 2193 / 831

Let's proceed to step 8:
831 can be fit into 2193 2 times, resulting in a remainder of 531.
The number 2 becomes the next digit in our result. 
Result so far: 78832.0
Deduct 1662 from 2193 and we're left with 531.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5310, and continue the process.

On to step 9:
When dividing 5310 by 831, we get 6 with a remainder of 324.
Use 6 as the next digit of our solution. 
Result so far: 78832.6
Subtract 4986 from 5310 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 10:
The number 831 fits into 3240 3 times, leaving a remainder of 747.
Use 3 as the next digit of our solution. 
Result so far: 78832.63
If we subtract 2493 from 3240, we get 747.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7470, and continue the process.

Let's proceed to step 11:
831 goes into 7470 8 times with a remainder of 822.
Record the quotient 8 as the next digit in the result. 
Result so far: 78832.638
If we take 6648 away from 7470, we end up with 822.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8220, and continue the process.

On to step 12:
When dividing 8220 by 831, we get 9 with a remainder of 741.
Record the quotient 9 as the next digit in the result. 
Result so far: 78832.6389
If we subtract 7479 from 8220, we get 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

Let's proceed to step 13:
831 can be fit into 7410 8 times, resulting in a remainder of 762.
The next digit of our result is 8. 
Result so far: 78832.63898
The remainder is 762 after subtracting 6648 from 7410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7620, and continue the process.

On to step 14:
If we divide 7620 by 831, we get 9 and a remainder of 141.
Use 9 as the next digit of our solution. 
Result so far: 78832.638989
If we subtract 7479 from 7620, we get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Step 15:
831 goes into 1410 1 times with a remainder of 579.
Put 1 as the next digit of the answer. 
Result so far: 78832.6389891
The remainder is 579 after subtracting 831 from 1410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

On to step 16:
831 can be fit into 5790 6 times, resulting in a remainder of 804.
Put 6 as the next digit of the answer. 
Result so far: 78832.63898916
If we subtract 4986 from 5790, we get 804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8040, and continue the process.

After the division, we end up with 78832.63898916 and a remainder of 8.04e-07.