We divide 31900273 by 90
Let's see how many times 90 fits into 31900273.

Going ahead to step 1:
The number 90 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 90

Going ahead to step 2:
The number 90 fits into 31 0 times, leaving a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Take the next digit (9) from the dividend and append it to 31, then repeat: 319 / 90

Advancing to step 3:
319 divided by 90 is 3 with a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 49 after subtracting 270 from 319.
Grab the next digit (0) from the dividend, add it to 49, then carry on: 490 / 90

Moving on to step 4:
490 divided by 90 is 5 with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
Subtract 450 from 490 to get 40.
Bring next digit (0) of the dividend behind the 40 and repeat the process: 400 / 90

Step 5:
When dividing 400 by 90, we get 4 with a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 354.0
Deduct 360 from 400 and we're left with 40.
Fetch the next digit (2) from the dividend, attach it to 40 and continue: 402 / 90

Going ahead to step 6:
402 divided by 90 is 4 with a remainder of 42.
Put 4 as the next digit of the answer. 
Result so far: 3544.0
Deduct 360 from 402 and we're left with 42.
Append the next digit (7) from the dividend to 42 and continue with: 427 / 90

Going ahead to step 7:
The number 90 fits into 427 4 times, leaving a remainder of 67.
Use 4 as the next digit of our solution. 
Result so far: 35444.0
The remainder is 67 after subtracting 360 from 427.
Grab the next digit (3) from the dividend, add it to 67, then carry on: 673 / 90

Let's proceed to step 8:
90 goes into 673 7 times with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 354447.0
Subtract 630 from 673 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 9:
When dividing 430 by 90, we get 4 with a remainder of 70.
The next digit of our result is 4. 
Result so far: 354447.4
Deduct 360 from 430 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 10:
90 goes into 700 7 times with a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 354447.47
If we subtract 630 from 700, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 11:
The number 90 fits into 700 7 times, leaving a remainder of 70.
The next digit of our result is 7. 
Result so far: 354447.477
Subtract 630 from 700 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

In conclusion, the division gives 354447.477 with a balance of 0.007.