We're dividing 902990 by 86 
We want to divide 902990 by 86.

Step 1:
When dividing 9 by 86, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 86

Let's proceed to step 2:
When dividing 90 by 86, we get 1 with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 86 away from 90, we end up with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 86

Let's proceed to step 3:
42 divided by 86 is 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 42 to get 42.
Bring next digit (9) of the dividend behind the 42 and repeat the process: 429 / 86

Moving on to step 4:
86 goes into 429 4 times with a remainder of 85.
Put 4 as the next digit of the answer. 
Result so far: 104.0
If we subtract 344 from 429, we get 85.
Bring next digit (9) of the dividend behind the 85 and repeat the process: 859 / 86

Step 5:
86 can be fit into 859 9 times, resulting in a remainder of 85.
Use 9 as the next digit of our solution. 
Result so far: 1049.0
Subtracting 774 from 859 leaves us with 85.
Bring next digit (0) of the dividend behind the 85 and repeat the process: 850 / 86

Step 6:
When dividing 850 by 86, we get 9 with a remainder of 76.
Use 9 as the next digit of our solution. 
Result so far: 10499.0
If we take 774 away from 850, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 7:
86 goes into 760 8 times with a remainder of 72.
Record the quotient 8 as the next digit in the result. 
Result so far: 10499.8
The remainder is 72 after subtracting 688 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 8:
When dividing 720 by 86, we get 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 10499.88
The remainder is 32 after subtracting 688 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 10499.88 with a balance of 0.032.