We're dividing 99758885 by 255 
We want to figure out the number of times 99758885 can be divided by 255.

Advancing to step 1:
255 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 255

On to step 2:
If we divide 99 by 255, we get 0 and a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Take the next digit (7) from the dividend and append it to 99, then repeat: 997 / 255

Advancing to step 3:
997 divided by 255 is 3 with a remainder of 232.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 765 away from 997, we end up with 232.
Take the next digit (5) from the dividend and append it to 232, then repeat: 2325 / 255

Going ahead to step 4:
2325 divided by 255 is 9 with a remainder of 30.
Put 9 as the next digit of the answer. 
Result so far: 39.0
The remainder is 30 after subtracting 2295 from 2325.
Grab the next digit (8) from the dividend, add it to 30, then carry on: 308 / 255

On to step 5:
When dividing 308 by 255, we get 1 with a remainder of 53.
The next digit of our result is 1. 
Result so far: 391.0
Deduct 255 from 308 and we're left with 53.
Fetch the next digit (8) from the dividend, attach it to 53 and continue: 538 / 255

On to step 6:
When dividing 538 by 255, we get 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 3912.0
If we subtract 510 from 538, we get 28.
Append the next digit (8) from the dividend to 28 and continue with: 288 / 255

Advancing to step 7:
The number 255 fits into 288 1 times, leaving a remainder of 33.
The next digit of our result is 1. 
Result so far: 39121.0
The remainder is 33 after subtracting 255 from 288.
Include the next digit (5) from the dividend after 33, then repeat: 335 / 255

On to step 8:
335 divided by 255 is 1 with a remainder of 80.
Put 1 as the next digit of the answer. 
Result so far: 391211.0
Subtracting 255 from 335 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 9:
If we divide 800 by 255, we get 3 and a remainder of 35.
Record the quotient 3 as the next digit in the result. 
Result so far: 391211.3
If we subtract 765 from 800, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 10:
255 can be fit into 350 1 times, resulting in a remainder of 95.
Put 1 as the next digit of the answer. 
Result so far: 391211.31
If we take 255 away from 350, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 11:
255 can be fit into 950 3 times, resulting in a remainder of 185.
Use 3 as the next digit of our solution. 
Result so far: 391211.313
If we subtract 765 from 950, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 12:
255 can be fit into 1850 7 times, resulting in a remainder of 65.
The number 7 becomes the next digit in our result. 
Result so far: 391211.3137
Subtracting 1785 from 1850 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 13:
255 goes into 650 2 times with a remainder of 140.
Put 2 as the next digit of the answer. 
Result so far: 391211.31372
Subtract 510 from 650 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 14:
255 can be fit into 1400 5 times, resulting in a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 391211.313725
The remainder is 125 after subtracting 1275 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 15:
When dividing 1250 by 255, we get 4 with a remainder of 230.
Write down 4 as next digit of the result. 
Result so far: 391211.3137254
The remainder is 230 after subtracting 1020 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 16:
255 can be fit into 2300 9 times, resulting in a remainder of 5.
The next digit of our result is 9. 
Result so far: 391211.31372549
Subtract 2295 from 2300 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 391211.31372549, with a leftover of 5e-09.