We look at the division of 488328 by 90 
We want to figure out the number of times 488328 can be divided by 90.

Let's proceed to step 1:
90 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 90

Step 2:
When dividing 48 by 90, we get 0 with a remainder of 48.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 48 and we're left with 48.
Fetch the next digit (8) from the dividend, attach it to 48 and continue: 488 / 90

Going ahead to step 3:
If we divide 488 by 90, we get 5 and a remainder of 38.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 450 from 488 and we're left with 38.
Include the next digit (3) from the dividend after 38, then repeat: 383 / 90

Going ahead to step 4:
90 goes into 383 4 times with a remainder of 23.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
Subtract 360 from 383 to get 23.
Grab the next digit (2) from the dividend, add it to 23, then carry on: 232 / 90

Moving on to step 5:
If we divide 232 by 90, we get 2 and a remainder of 52.
Use 2 as the next digit of our solution. 
Result so far: 542.0
Deduct 180 from 232 and we're left with 52.
Fetch the next digit (8) from the dividend, attach it to 52 and continue: 528 / 90

Going ahead to step 6:
528 divided by 90 is 5 with a remainder of 78.
The next digit of our result is 5. 
Result so far: 5425.0
Deduct 450 from 528 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 7:
If we divide 780 by 90, we get 8 and a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 5425.8
If we subtract 720 from 780, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 8:
600 divided by 90 is 6 with a remainder of 60.
The next digit of our result is 6. 
Result so far: 5425.86
Subtracting 540 from 600 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
If we divide 600 by 90, we get 6 and a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 5425.866
Subtracting 540 from 600 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 5425.866, with a leftover of 0.006.