We're dividing 31791557 by 90 
Let's see how many times 90 fits into 31791557.

Let's proceed to step 1:
90 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 90

Advancing to step 2:
When dividing 31 by 90, we get 0 with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Take the next digit (7) from the dividend and append it to 31, then repeat: 317 / 90

On to step 3:
If we divide 317 by 90, we get 3 and a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 47 after subtracting 270 from 317.
Fetch the next digit (9) from the dividend, attach it to 47 and continue: 479 / 90

Let's proceed to step 4:
479 divided by 90 is 5 with a remainder of 29.
Write down 5 as next digit of the result. 
Result so far: 35.0
Subtracting 450 from 479 leaves us with 29.
Append the next digit (1) from the dividend to 29 and continue with: 291 / 90

Step 5:
90 goes into 291 3 times with a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 353.0
Subtracting 270 from 291 leaves us with 21.
Grab the next digit (5) from the dividend, add it to 21, then carry on: 215 / 90

On to step 6:
The number 90 fits into 215 2 times, leaving a remainder of 35.
The number 2 becomes the next digit in our result. 
Result so far: 3532.0
The remainder is 35 after subtracting 180 from 215.
Append the next digit (5) from the dividend to 35 and continue with: 355 / 90

Advancing to step 7:
90 can be fit into 355 3 times, resulting in a remainder of 85.
The next digit of our result is 3. 
Result so far: 35323.0
Subtract 270 from 355 to get 85.
Append the next digit (7) from the dividend to 85 and continue with: 857 / 90

Advancing to step 8:
857 divided by 90 is 9 with a remainder of 47.
The next digit of our result is 9. 
Result so far: 353239.0
Subtract 810 from 857 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 9:
470 divided by 90 is 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 353239.5
If we subtract 450 from 470, 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.

Step 10:
When dividing 200 by 90, we get 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 353239.52
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
200 divided by 90 is 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 353239.522
Deduct 180 from 200 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.

In conclusion, the division gives 353239.522 with a balance of 0.002.