We're dividing 81908358 by 902 
We want to divide 81908358 by 902.

Advancing to step 1:
902 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 902

Moving on to step 2:
If we divide 81 by 902, we get 0 and a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 902

Let's proceed to step 3:
902 goes into 819 0 times with a remainder of 819.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 819, we get 819.
Take the next digit (0) from the dividend and append it to 819, then repeat: 8190 / 902

Step 4:
902 goes into 8190 9 times with a remainder of 72.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 72 after subtracting 8118 from 8190.
Fetch the next digit (8) from the dividend, attach it to 72 and continue: 728 / 902

Going ahead to step 5:
902 goes into 728 0 times with a remainder of 728.
Record the quotient 0 as the next digit in the result. 
Result so far: 90.0
If we subtract 0 from 728, we get 728.
Append the next digit (3) from the dividend to 728 and continue with: 7283 / 902

Going ahead to step 6:
7283 divided by 902 is 8 with a remainder of 67.
Use 8 as the next digit of our solution. 
Result so far: 908.0
Subtract 7216 from 7283 to get 67.
Bring next digit (5) of the dividend behind the 67 and repeat the process: 675 / 902

Going ahead to step 7:
The number 902 fits into 675 0 times, leaving a remainder of 675.
The number 0 becomes the next digit in our result. 
Result so far: 9080.0
Deduct 0 from 675 and we're left with 675.
Fetch the next digit (8) from the dividend, attach it to 675 and continue: 6758 / 902

On to step 8:
The number 902 fits into 6758 7 times, leaving a remainder of 444.
The next digit of our result is 7. 
Result so far: 90807.0
Subtract 6314 from 6758 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Step 9:
4440 divided by 902 is 4 with a remainder of 832.
Record the quotient 4 as the next digit in the result. 
Result so far: 90807.4
The remainder is 832 after subtracting 3608 from 4440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8320, and continue the process.

Step 10:
When dividing 8320 by 902, we get 9 with a remainder of 202.
The number 9 becomes the next digit in our result. 
Result so far: 90807.49
Subtract 8118 from 8320 to get 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Going ahead to step 11:
902 can be fit into 2020 2 times, resulting in a remainder of 216.
Write down 2 as next digit of the result. 
Result so far: 90807.492
If we take 1804 away from 2020, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Step 12:
902 can be fit into 2160 2 times, resulting in a remainder of 356.
The number 2 becomes the next digit in our result. 
Result so far: 90807.4922
Subtract 1804 from 2160 to get 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

In conclusion, the division gives 90807.4922 with a balance of 0.00356.