Let's divide 81630993 by 906
We want to divide 81630993 by 906.

Moving on to step 1:
If we divide 8 by 906, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 906

Going ahead to step 2:
The number 906 fits into 81 0 times, leaving a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Include the next digit (6) from the dividend after 81, then repeat: 816 / 906

Moving on to step 3:
When dividing 816 by 906, we get 0 with a remainder of 816.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 816 after subtracting 0 from 816.
Bring next digit (3) of the dividend behind the 816 and repeat the process: 8163 / 906

Moving on to step 4:
906 goes into 8163 9 times with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 8154 away from 8163, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 906

Going ahead to step 5:
The number 906 fits into 90 0 times, leaving a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 90.0
Subtract 0 from 90 to get 90.
Fetch the next digit (9) from the dividend, attach it to 90 and continue: 909 / 906

Let's proceed to step 6:
If we divide 909 by 906, we get 1 and a remainder of 3.
The next digit of our result is 1. 
Result so far: 901.0
If we take 906 away from 909, we end up with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 906

Going ahead to step 7:
When dividing 39 by 906, we get 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 9010.0
Deduct 0 from 39 and we're left with 39.
Include the next digit (3) from the dividend after 39, then repeat: 393 / 906

Moving on to step 8:
When dividing 393 by 906, we get 0 with a remainder of 393.
Put 0 as the next digit of the answer. 
Result so far: 90100.0
If we subtract 0 from 393, we get 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Step 9:
3930 divided by 906 is 4 with a remainder of 306.
Put 4 as the next digit of the answer. 
Result so far: 90100.4
Subtracting 3624 from 3930 leaves us with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Moving on to step 10:
When dividing 3060 by 906, we get 3 with a remainder of 342.
The next digit of our result is 3. 
Result so far: 90100.43
If we take 2718 away from 3060, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Moving on to step 11:
If we divide 3420 by 906, we get 3 and a remainder of 702.
Use 3 as the next digit of our solution. 
Result so far: 90100.433
The remainder is 702 after subtracting 2718 from 3420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7020, and continue the process.

The final outcome is 90100.433, with a leftover of 0.0702.