54585581 ÷ 831 
We want to figure out the number of times 54585581 can be divided by 831.

Step 1:
831 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 831

Step 2:
831 goes into 54 0 times with a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Grab the next digit (5) from the dividend, add it to 54, then carry on: 545 / 831

Going ahead to step 3:
If we divide 545 by 831, we get 0 and a remainder of 545.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 545 to get 545.
Include the next digit (8) from the dividend after 545, then repeat: 5458 / 831

On to step 4:
831 goes into 5458 6 times with a remainder of 472.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 4986 from 5458, we get 472.
Fetch the next digit (5) from the dividend, attach it to 472 and continue: 4725 / 831

Let's proceed to step 5:
If we divide 4725 by 831, we get 5 and a remainder of 570.
Put 5 as the next digit of the answer. 
Result so far: 65.0
If we subtract 4155 from 4725, we get 570.
Bring next digit (5) of the dividend behind the 570 and repeat the process: 5705 / 831

Advancing to step 6:
831 can be fit into 5705 6 times, resulting in a remainder of 719.
The next digit of our result is 6. 
Result so far: 656.0
If we subtract 4986 from 5705, we get 719.
Take the next digit (8) from the dividend and append it to 719, then repeat: 7198 / 831

Step 7:
The number 831 fits into 7198 8 times, leaving a remainder of 550.
The next digit of our result is 8. 
Result so far: 6568.0
If we subtract 6648 from 7198, we get 550.
Include the next digit (1) from the dividend after 550, then repeat: 5501 / 831

On to step 8:
5501 divided by 831 is 6 with a remainder of 515.
The number 6 becomes the next digit in our result. 
Result so far: 65686.0
If we subtract 4986 from 5501, we get 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

On to step 9:
831 can be fit into 5150 6 times, resulting in a remainder of 164.
Use 6 as the next digit of our solution. 
Result so far: 65686.6
If we take 4986 away from 5150, we end up with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Advancing to step 10:
1640 divided by 831 is 1 with a remainder of 809.
Use 1 as the next digit of our solution. 
Result so far: 65686.61
If we subtract 831 from 1640, we get 809.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8090, and continue the process.

Step 11:
When dividing 8090 by 831, we get 9 with a remainder of 611.
Write down 9 as next digit of the result. 
Result so far: 65686.619
Subtracting 7479 from 8090 leaves us with 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

On to step 12:
If we divide 6110 by 831, we get 7 and a remainder of 293.
Record the quotient 7 as the next digit in the result. 
Result so far: 65686.6197
Subtract 5817 from 6110 to get 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Going ahead to step 13:
When dividing 2930 by 831, we get 3 with a remainder of 437.
Write down 3 as next digit of the result. 
Result so far: 65686.61973
Subtracting 2493 from 2930 leaves us with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Moving on to step 14:
831 goes into 4370 5 times with a remainder of 215.
Put 5 as the next digit of the answer. 
Result so far: 65686.619735
The remainder is 215 after subtracting 4155 from 4370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Let's proceed to step 15:
2150 divided by 831 is 2 with a remainder of 488.
Write down 2 as next digit of the result. 
Result so far: 65686.6197352
Subtracting 1662 from 2150 leaves us with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Advancing to step 16:
The number 831 fits into 4880 5 times, leaving a remainder of 725.
Use 5 as the next digit of our solution. 
Result so far: 65686.61973525
If we subtract 4155 from 4880, we get 725.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7250, and continue the process.

The final result is 65686.61973525 with a remainder of 7.25e-07.