81263580 ÷ 663 
We're looking to find how many times 663 goes into 81263580.

Let's proceed to step 1:
8 divided by 663 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 663

Let's proceed to step 2:
The number 663 fits into 81 0 times, leaving a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Append the next digit (2) from the dividend to 81 and continue with: 812 / 663

Going ahead to step 3:
663 goes into 812 1 times with a remainder of 149.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 149 after subtracting 663 from 812.
Fetch the next digit (6) from the dividend, attach it to 149 and continue: 1496 / 663

On to step 4:
The number 663 fits into 1496 2 times, leaving a remainder of 170.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 1326 from 1496 and we're left with 170.
Take the next digit (3) from the dividend and append it to 170, then repeat: 1703 / 663

Advancing to step 5:
1703 divided by 663 is 2 with a remainder of 377.
The number 2 becomes the next digit in our result. 
Result so far: 122.0
If we take 1326 away from 1703, we end up with 377.
Fetch the next digit (5) from the dividend, attach it to 377 and continue: 3775 / 663

Step 6:
The number 663 fits into 3775 5 times, leaving a remainder of 460.
Put 5 as the next digit of the answer. 
Result so far: 1225.0
Subtracting 3315 from 3775 leaves us with 460.
Take the next digit (8) from the dividend and append it to 460, then repeat: 4608 / 663

Step 7:
If we divide 4608 by 663, we get 6 and a remainder of 630.
The number 6 becomes the next digit in our result. 
Result so far: 12256.0
The remainder is 630 after subtracting 3978 from 4608.
Take the next digit (0) from the dividend and append it to 630, then repeat: 6300 / 663

Advancing to step 8:
When dividing 6300 by 663, we get 9 with a remainder of 333.
Use 9 as the next digit of our solution. 
Result so far: 122569.0
Subtract 5967 from 6300 to get 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Going ahead to step 9:
The number 663 fits into 3330 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 122569.5
The remainder is 15 after subtracting 3315 from 3330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 10:
663 can be fit into 150 0 times, resulting in a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 122569.5
If we take 0 away from 150, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 11:
663 goes into 1500 2 times with a remainder of 174.
Use 2 as the next digit of our solution. 
Result so far: 122569.502
Subtract 1326 from 1500 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

On to step 12:
When dividing 1740 by 663, we get 2 with a remainder of 414.
Write down 2 as next digit of the result. 
Result so far: 122569.5022
If we take 1326 away from 1740, we end up with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

After the division, we end up with 122569.5022 and a remainder of 0.00414.