We divide 75108954 by 90
Our goal is to divide 75108954 by 90.

Step 1:
If we divide 7 by 90, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 90

Let's proceed to step 2:
90 can be fit into 75 0 times, resulting in a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 75, we end up with 75.
Append the next digit (1) from the dividend to 75 and continue with: 751 / 90

Going ahead to step 3:
When dividing 751 by 90, we get 8 with a remainder of 31.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 720 from 751 to get 31.
Append the next digit (0) from the dividend to 31 and continue with: 310 / 90

Step 4:
If we divide 310 by 90, we get 3 and a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 83.0
If we subtract 270 from 310, we get 40.
Grab the next digit (8) from the dividend, add it to 40, then carry on: 408 / 90

Going ahead to step 5:
If we divide 408 by 90, we get 4 and a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 834.0
If we subtract 360 from 408, we get 48.
Include the next digit (9) from the dividend after 48, then repeat: 489 / 90

On to step 6:
If we divide 489 by 90, we get 5 and a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 8345.0
If we take 450 away from 489, we end up with 39.
Include the next digit (5) from the dividend after 39, then repeat: 395 / 90

Let's proceed to step 7:
395 divided by 90 is 4 with a remainder of 35.
Record the quotient 4 as the next digit in the result. 
Result so far: 83454.0
Subtract 360 from 395 to get 35.
Bring next digit (4) of the dividend behind the 35 and repeat the process: 354 / 90

On to step 8:
90 can be fit into 354 3 times, resulting in a remainder of 84.
The next digit of our result is 3. 
Result so far: 834543.0
Deduct 270 from 354 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 9:
When dividing 840 by 90, we get 9 with a remainder of 30.
Record the quotient 9 as the next digit in the result. 
Result so far: 834543.9
The remainder is 30 after subtracting 810 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 10:
When dividing 300 by 90, we get 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 834543.93
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 11:
300 divided by 90 is 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 834543.933
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 834543.933, with a leftover of 0.003.