81320749 divided by 808 
We want to figure out the number of times 81320749 can be divided by 808.

Step 1:
If we divide 8 by 808, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 808

Let's proceed to step 2:
If we divide 81 by 808, we get 0 and a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (3) from the dividend, add it to 81, then carry on: 813 / 808

On to step 3:
813 divided by 808 is 1 with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 5 after subtracting 808 from 813.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 808

Step 4:
The number 808 fits into 52 0 times, leaving a remainder of 52.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 52, we get 52.
Include the next digit (0) from the dividend after 52, then repeat: 520 / 808

Let's proceed to step 5:
The number 808 fits into 520 0 times, leaving a remainder of 520.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
The remainder is 520 after subtracting 0 from 520.
Fetch the next digit (7) from the dividend, attach it to 520 and continue: 5207 / 808

Going ahead to step 6:
If we divide 5207 by 808, we get 6 and a remainder of 359.
Use 6 as the next digit of our solution. 
Result so far: 1006.0
Subtracting 4848 from 5207 leaves us with 359.
Fetch the next digit (4) from the dividend, attach it to 359 and continue: 3594 / 808

Let's proceed to step 7:
When dividing 3594 by 808, we get 4 with a remainder of 362.
Use 4 as the next digit of our solution. 
Result so far: 10064.0
The remainder is 362 after subtracting 3232 from 3594.
Bring next digit (9) of the dividend behind the 362 and repeat the process: 3629 / 808

On to step 8:
The number 808 fits into 3629 4 times, leaving a remainder of 397.
The number 4 becomes the next digit in our result. 
Result so far: 100644.0
The remainder is 397 after subtracting 3232 from 3629.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Going ahead to step 9:
If we divide 3970 by 808, we get 4 and a remainder of 738.
Use 4 as the next digit of our solution. 
Result so far: 100644.4
If we take 3232 away from 3970, we end up with 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7380, and continue the process.

Going ahead to step 10:
The number 808 fits into 7380 9 times, leaving a remainder of 108.
The number 9 becomes the next digit in our result. 
Result so far: 100644.49
Deduct 7272 from 7380 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 11:
808 can be fit into 1080 1 times, resulting in a remainder of 272.
Record the quotient 1 as the next digit in the result. 
Result so far: 100644.491
If we subtract 808 from 1080, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Moving on to step 12:
808 goes into 2720 3 times with a remainder of 296.
Put 3 as the next digit of the answer. 
Result so far: 100644.4913
The remainder is 296 after subtracting 2424 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Moving on to step 13:
The number 808 fits into 2960 3 times, leaving a remainder of 536.
The number 3 becomes the next digit in our result. 
Result so far: 100644.49133
The remainder is 536 after subtracting 2424 from 2960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

After the division, we end up with 100644.49133 and a remainder of 0.000536.