Let's divide 90135722 by 255
Our goal is to divide 90135722 by 255.

On to step 1:
If we divide 9 by 255, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 255

Going ahead to step 2:
The number 255 fits into 90 0 times, leaving a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Take the next digit (1) from the dividend and append it to 90, then repeat: 901 / 255

Step 3:
255 can be fit into 901 3 times, resulting in a remainder of 136.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 765 from 901 to get 136.
Fetch the next digit (3) from the dividend, attach it to 136 and continue: 1363 / 255

Moving on to step 4:
When dividing 1363 by 255, we get 5 with a remainder of 88.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Subtracting 1275 from 1363 leaves us with 88.
Take the next digit (5) from the dividend and append it to 88, then repeat: 885 / 255

On to step 5:
If we divide 885 by 255, we get 3 and a remainder of 120.
The number 3 becomes the next digit in our result. 
Result so far: 353.0
Subtract 765 from 885 to get 120.
Take the next digit (7) from the dividend and append it to 120, then repeat: 1207 / 255

Going ahead to step 6:
When dividing 1207 by 255, we get 4 with a remainder of 187.
The next digit of our result is 4. 
Result so far: 3534.0
If we take 1020 away from 1207, we end up with 187.
Bring next digit (2) of the dividend behind the 187 and repeat the process: 1872 / 255

Moving on to step 7:
When dividing 1872 by 255, we get 7 with a remainder of 87.
Write down 7 as next digit of the result. 
Result so far: 35347.0
If we take 1785 away from 1872, we end up with 87.
Include the next digit (2) from the dividend after 87, then repeat: 872 / 255

On to step 8:
When dividing 872 by 255, we get 3 with a remainder of 107.
The next digit of our result is 3. 
Result so far: 353473.0
If we subtract 765 from 872, we get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Going ahead to step 9:
255 goes into 1070 4 times with a remainder of 50.
Record the quotient 4 as the next digit in the result. 
Result so far: 353473.4
The remainder is 50 after subtracting 1020 from 1070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 10:
500 divided by 255 is 1 with a remainder of 245.
Use 1 as the next digit of our solution. 
Result so far: 353473.41
Subtract 255 from 500 to get 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Step 11:
If we divide 2450 by 255, we get 9 and a remainder of 155.
Put 9 as the next digit of the answer. 
Result so far: 353473.419
If we take 2295 away from 2450, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Let's proceed to step 12:
1550 divided by 255 is 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 353473.4196
The remainder is 20 after subtracting 1530 from 1550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
The number 255 fits into 200 0 times, leaving a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 353473.4196
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 14:
255 goes into 2000 7 times with a remainder of 215.
The next digit of our result is 7. 
Result so far: 353473.419607
Deduct 1785 from 2000 and we're left with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 15:
When dividing 2150 by 255, we get 8 with a remainder of 110.
Record the quotient 8 as the next digit in the result. 
Result so far: 353473.4196078
The remainder is 110 after subtracting 2040 from 2150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 16:
The number 255 fits into 1100 4 times, leaving a remainder of 80.
The next digit of our result is 4. 
Result so far: 353473.41960784
The remainder is 80 after subtracting 1020 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 353473.41960784 with a remainder of 8e-08.