We're dividing 285509 by 90 
Let's see how many times 90 fits into 285509.

Going ahead to step 1:
90 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 90

Advancing to step 2:
When dividing 28 by 90, we get 0 with a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Append the next digit (5) from the dividend to 28 and continue with: 285 / 90

Going ahead to step 3:
285 divided by 90 is 3 with a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 15 after subtracting 270 from 285.
Bring next digit (5) of the dividend behind the 15 and repeat the process: 155 / 90

Advancing to step 4:
If we divide 155 by 90, we get 1 and a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 31.0
Subtracting 90 from 155 leaves us with 65.
Fetch the next digit (0) from the dividend, attach it to 65 and continue: 650 / 90

Going ahead to step 5:
90 goes into 650 7 times with a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 317.0
Subtract 630 from 650 to get 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 90

Moving on to step 6:
209 divided by 90 is 2 with a remainder of 29.
The next digit of our result is 2. 
Result so far: 3172.0
Subtracting 180 from 209 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
If we divide 290 by 90, we get 3 and a remainder of 20.
The next digit of our result is 3. 
Result so far: 3172.3
Deduct 270 from 290 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
200 divided by 90 is 2 with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 3172.32
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
90 can be fit into 200 2 times, resulting in a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 3172.322
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 3172.322 with a balance of 0.002.