We look at the division of 321075 by 90 
We want to divide 321075 by 90.

Advancing to step 1:
90 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 90

Going ahead to step 2:
32 divided by 90 is 0 with a remainder of 32.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 32 to get 32.
Fetch the next digit (1) from the dividend, attach it to 32 and continue: 321 / 90

Step 3:
90 goes into 321 3 times with a remainder of 51.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 270 from 321 and we're left with 51.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 90

Let's proceed to step 4:
90 goes into 510 5 times with a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
The remainder is 60 after subtracting 450 from 510.
Include the next digit (7) from the dividend after 60, then repeat: 607 / 90

Going ahead to step 5:
90 goes into 607 6 times with a remainder of 67.
The next digit of our result is 6. 
Result so far: 356.0
Subtract 540 from 607 to get 67.
Append the next digit (5) from the dividend to 67 and continue with: 675 / 90

Going ahead to step 6:
When dividing 675 by 90, we get 7 with a remainder of 45.
Put 7 as the next digit of the answer. 
Result so far: 3567.0
If we subtract 630 from 675, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 7:
450 divided by 90 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 3567.5
Subtracting 450 from 450 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3567.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
90 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3567.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 3567.5, with a leftover of 0.0.