We're dividing 313591 by 90 
Let's see how many times 90 fits into 313591.

On to step 1:
When dividing 3 by 90, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 90

Step 2:
31 divided by 90 is 0 with 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.
Append the next digit (3) from the dividend to 31 and continue with: 313 / 90

Let's proceed to step 3:
When dividing 313 by 90, we get 3 with a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 270 from 313 to get 43.
Fetch the next digit (5) from the dividend, attach it to 43 and continue: 435 / 90

Let's proceed to step 4:
If we divide 435 by 90, we get 4 and a remainder of 75.
Write down 4 as next digit of the result. 
Result so far: 34.0
The remainder is 75 after subtracting 360 from 435.
Grab the next digit (9) from the dividend, add it to 75, then carry on: 759 / 90

Step 5:
If we divide 759 by 90, we get 8 and a remainder of 39.
The next digit of our result is 8. 
Result so far: 348.0
Deduct 720 from 759 and we're left with 39.
Take the next digit (1) from the dividend and append it to 39, then repeat: 391 / 90

Going ahead to step 6:
The number 90 fits into 391 4 times, leaving a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 3484.0
The remainder is 31 after subtracting 360 from 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 7:
If we divide 310 by 90, we get 3 and a remainder of 40.
Use 3 as the next digit of our solution. 
Result so far: 3484.3
If we subtract 270 from 310, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
When dividing 400 by 90, we get 4 with a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 3484.34
If we take 360 away from 400, we end up 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.

On to step 9:
90 can be fit into 400 4 times, resulting in a remainder of 40.
The next digit of our result is 4. 
Result so far: 3484.344
If we subtract 360 from 400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The quotient of the division is 3484.344, and the remainder is 0.004.