81663250 divided by 960 
We want to figure out the number of times 81663250 can be divided by 960.

Going ahead to step 1:
If we divide 8 by 960, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 960

On to step 2:
If we divide 81 by 960, we get 0 and a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Bring next digit (6) of the dividend behind the 81 and repeat the process: 816 / 960

Moving on to step 3:
960 can be fit into 816 0 times, resulting in a remainder of 816.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 816, we get 816.
Grab the next digit (6) from the dividend, add it to 816, then carry on: 8166 / 960

Let's proceed to step 4:
960 can be fit into 8166 8 times, resulting in a remainder of 486.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 7680 away from 8166, we end up with 486.
Fetch the next digit (3) from the dividend, attach it to 486 and continue: 4863 / 960

Let's proceed to step 5:
4863 divided by 960 is 5 with a remainder of 63.
The next digit of our result is 5. 
Result so far: 85.0
Subtracting 4800 from 4863 leaves us with 63.
Bring next digit (2) of the dividend behind the 63 and repeat the process: 632 / 960

Going ahead to step 6:
If we divide 632 by 960, we get 0 and a remainder of 632.
Use 0 as the next digit of our solution. 
Result so far: 850.0
The remainder is 632 after subtracting 0 from 632.
Include the next digit (5) from the dividend after 632, then repeat: 6325 / 960

Moving on to step 7:
6325 divided by 960 is 6 with a remainder of 565.
Use 6 as the next digit of our solution. 
Result so far: 8506.0
If we take 5760 away from 6325, we end up with 565.
Grab the next digit (0) from the dividend, add it to 565, then carry on: 5650 / 960

Going ahead to step 8:
The number 960 fits into 5650 5 times, leaving a remainder of 850.
The next digit of our result is 5. 
Result so far: 85065.0
If we subtract 4800 from 5650, we get 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Going ahead to step 9:
8500 divided by 960 is 8 with a remainder of 820.
Use 8 as the next digit of our solution. 
Result so far: 85065.8
Deduct 7680 from 8500 and we're left with 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Step 10:
When dividing 8200 by 960, we get 8 with a remainder of 520.
Use 8 as the next digit of our solution. 
Result so far: 85065.88
Deduct 7680 from 8200 and we're left with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final result is 85065.88 with a remainder of 0.52.