We look at the division of 170554 by 90 
We're looking to find how many times 90 goes into 170554.

Step 1:
If we divide 1 by 90, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 90

Let's proceed to step 2:
90 goes into 17 0 times with a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Grab the next digit (0) from the dividend, add it to 17, then carry on: 170 / 90

On to step 3:
The number 90 fits into 170 1 times, leaving a remainder of 80.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 90 from 170, we get 80.
Grab the next digit (5) from the dividend, add it to 80, then carry on: 805 / 90

Advancing to step 4:
90 can be fit into 805 8 times, resulting in a remainder of 85.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we take 720 away from 805, we end up with 85.
Fetch the next digit (5) from the dividend, attach it to 85 and continue: 855 / 90

Going ahead to step 5:
When dividing 855 by 90, we get 9 with a remainder of 45.
Write down 9 as next digit of the result. 
Result so far: 189.0
Deduct 810 from 855 and we're left with 45.
Take the next digit (4) from the dividend and append it to 45, then repeat: 454 / 90

Advancing to step 6:
The number 90 fits into 454 5 times, leaving a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 1895.0
Subtracting 450 from 454 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
40 divided by 90 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 1895.0
Deduct 0 from 40 and we're left 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.

Moving on to step 8:
90 goes into 400 4 times with a remainder of 40.
The next digit of our result is 4. 
Result so far: 1895.04
Deduct 360 from 400 and we're left 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.

Moving on to step 9:
90 goes into 400 4 times with a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 1895.044
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.

In conclusion, the division gives 1895.044 with a balance of 0.004.