We divide 310102 by 90
We want to divide 310102 by 90.

Advancing to step 1:
90 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 90

Moving on to step 2:
90 can be fit into 31 0 times, resulting in a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Append the next digit (0) from the dividend to 31 and continue with: 310 / 90

Going ahead to step 3:
When dividing 310 by 90, we get 3 with a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 270 from 310 leaves us with 40.
Bring next digit (1) of the dividend behind the 40 and repeat the process: 401 / 90

Step 4:
401 divided by 90 is 4 with a remainder of 41.
Use 4 as the next digit of our solution. 
Result so far: 34.0
Subtract 360 from 401 to get 41.
Fetch the next digit (0) from the dividend, attach it to 41 and continue: 410 / 90

On to step 5:
If we divide 410 by 90, we get 4 and a remainder of 50.
The next digit of our result is 4. 
Result so far: 344.0
Subtracting 360 from 410 leaves us with 50.
Bring next digit (2) of the dividend behind the 50 and repeat the process: 502 / 90

Moving on to step 6:
If we divide 502 by 90, we get 5 and a remainder of 52.
Put 5 as the next digit of the answer. 
Result so far: 3445.0
The remainder is 52 after subtracting 450 from 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 7:
The number 90 fits into 520 5 times, leaving a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 3445.5
Deduct 450 from 520 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.

Step 8:
When dividing 700 by 90, we get 7 with a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 3445.57
If we take 630 away from 700, we end up 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.

Step 9:
90 can be fit into 700 7 times, resulting in a remainder of 70.
Use 7 as the next digit of our solution. 
Result so far: 3445.577
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.

In conclusion, the division gives 3445.577 with a balance of 0.007.