We look at the division of 2312 by 90 
Let's see how many times 90 fits into 2312.

Step 1:
If we divide 2 by 90, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 90

On to step 2:
23 divided by 90 is 0 with a remainder of 23.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 23 to get 23.
Fetch the next digit (1) from the dividend, attach it to 23 and continue: 231 / 90

Advancing to step 3:
90 goes into 231 2 times with a remainder of 51.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 180 away from 231, we end up with 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 90

Going ahead to step 4:
90 goes into 512 5 times with a remainder of 62.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Deduct 450 from 512 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 5:
If we divide 620 by 90, we get 6 and a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 25.6
Subtract 540 from 620 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 6:
If we divide 800 by 90, we get 8 and a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 25.68
Subtracting 720 from 800 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 7:
90 goes into 800 8 times with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 25.688
Deduct 720 from 800 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 25.688 with a remaining 0.008.