We're dividing 31511701 by 255 
We want to figure out the number of times 31511701 can be divided by 255.

Advancing to step 1:
3 divided by 255 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 255

Moving on to step 2:
If we divide 31 by 255, we get 0 and a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 255

Advancing to step 3:
When dividing 315 by 255, we get 1 with a remainder of 60.
The next digit of our result is 1. 
Result so far: 1.0
If we take 255 away from 315, we end up with 60.
Take the next digit (1) from the dividend and append it to 60, then repeat: 601 / 255

On to step 4:
255 goes into 601 2 times with a remainder of 91.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 510 from 601 to get 91.
Bring next digit (1) of the dividend behind the 91 and repeat the process: 911 / 255

Let's proceed to step 5:
911 divided by 255 is 3 with a remainder of 146.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
The remainder is 146 after subtracting 765 from 911.
Append the next digit (7) from the dividend to 146 and continue with: 1467 / 255

Let's proceed to step 6:
1467 divided by 255 is 5 with a remainder of 192.
Record the quotient 5 as the next digit in the result. 
Result so far: 1235.0
The remainder is 192 after subtracting 1275 from 1467.
Include the next digit (0) from the dividend after 192, then repeat: 1920 / 255

Let's proceed to step 7:
255 goes into 1920 7 times with a remainder of 135.
The number 7 becomes the next digit in our result. 
Result so far: 12357.0
If we subtract 1785 from 1920, we get 135.
Include the next digit (1) from the dividend after 135, then repeat: 1351 / 255

Let's proceed to step 8:
1351 divided by 255 is 5 with a remainder of 76.
The next digit of our result is 5. 
Result so far: 123575.0
If we take 1275 away from 1351, we end up 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.

Advancing to step 9:
When dividing 760 by 255, we get 2 with a remainder of 250.
The number 2 becomes the next digit in our result. 
Result so far: 123575.2
Subtracting 510 from 760 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 10:
255 can be fit into 2500 9 times, resulting in a remainder of 205.
Record the quotient 9 as the next digit in the result. 
Result so far: 123575.29
If we take 2295 away from 2500, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 11:
255 can be fit into 2050 8 times, resulting in a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 123575.298
Deduct 2040 from 2050 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 12:
When dividing 100 by 255, we get 0 with a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 123575.298
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 13:
255 can be fit into 1000 3 times, resulting in a remainder of 235.
Write down 3 as next digit of the result. 
Result so far: 123575.29803
Subtracting 765 from 1000 leaves us with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Moving on to step 14:
2350 divided by 255 is 9 with a remainder of 55.
Write down 9 as next digit of the result. 
Result so far: 123575.298039
The remainder is 55 after subtracting 2295 from 2350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 15:
550 divided by 255 is 2 with a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 123575.2980392
Subtract 510 from 550 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 16:
400 divided by 255 is 1 with a remainder of 145.
The next digit of our result is 1. 
Result so far: 123575.29803921
Subtract 255 from 400 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

The final outcome is 123575.29803921, with a leftover of 1.45e-07.