80355928 divided by 90 
We want to divide 80355928 by 90.

Moving on to step 1:
90 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 90

Step 2:
If we divide 80 by 90, we get 0 and a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Fetch the next digit (3) from the dividend, attach it to 80 and continue: 803 / 90

Moving on to step 3:
90 can be fit into 803 8 times, resulting in a remainder of 83.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 720 from 803 leaves us with 83.
Fetch the next digit (5) from the dividend, attach it to 83 and continue: 835 / 90

Moving on to step 4:
90 can be fit into 835 9 times, resulting in a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
If we take 810 away from 835, we end up with 25.
Take the next digit (5) from the dividend and append it to 25, then repeat: 255 / 90

Let's proceed to step 5:
If we divide 255 by 90, we get 2 and a remainder of 75.
The number 2 becomes the next digit in our result. 
Result so far: 892.0
Subtracting 180 from 255 leaves us with 75.
Include the next digit (9) from the dividend after 75, then repeat: 759 / 90

On to step 6:
90 goes into 759 8 times with a remainder of 39.
Record the quotient 8 as the next digit in the result. 
Result so far: 8928.0
Subtract 720 from 759 to get 39.
Fetch the next digit (2) from the dividend, attach it to 39 and continue: 392 / 90

Going ahead to step 7:
392 divided by 90 is 4 with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 89284.0
The remainder is 32 after subtracting 360 from 392.
Fetch the next digit (8) from the dividend, attach it to 32 and continue: 328 / 90

On to step 8:
90 goes into 328 3 times with a remainder of 58.
The next digit of our result is 3. 
Result so far: 892843.0
Subtract 270 from 328 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 9:
The number 90 fits into 580 6 times, leaving a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 892843.6
Subtracting 540 from 580 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
When dividing 400 by 90, we get 4 with a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 892843.64
Subtract 360 from 400 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.

On to step 11:
90 goes into 400 4 times with a remainder of 40.
The next digit of our result is 4. 
Result so far: 892843.644
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 892843.644, with a leftover of 0.004.