81564185 divided by 77 
We want to figure out the number of times 81564185 can be divided by 77.

Let's proceed to step 1:
77 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 77

Step 2:
The number 77 fits into 81 1 times, leaving a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 77 away from 81, we end up with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 77

Moving on to step 3:
45 divided by 77 is 0 with a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 45 leaves us with 45.
Take the next digit (6) from the dividend and append it to 45, then repeat: 456 / 77

Let's proceed to step 4:
456 divided by 77 is 5 with a remainder of 71.
Write down 5 as next digit of the result. 
Result so far: 105.0
Subtracting 385 from 456 leaves us with 71.
Append the next digit (4) from the dividend to 71 and continue with: 714 / 77

Moving on to step 5:
714 divided by 77 is 9 with a remainder of 21.
The next digit of our result is 9. 
Result so far: 1059.0
Subtract 693 from 714 to get 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 77

Let's proceed to step 6:
If we divide 211 by 77, we get 2 and a remainder of 57.
The next digit of our result is 2. 
Result so far: 10592.0
If we take 154 away from 211, we end up with 57.
Take the next digit (8) from the dividend and append it to 57, then repeat: 578 / 77

Going ahead to step 7:
77 goes into 578 7 times with a remainder of 39.
The number 7 becomes the next digit in our result. 
Result so far: 105927.0
Subtract 539 from 578 to get 39.
Grab the next digit (5) from the dividend, add it to 39, then carry on: 395 / 77

On to step 8:
77 goes into 395 5 times with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 1059275.0
Deduct 385 from 395 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
The number 77 fits into 100 1 times, leaving a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 1059275.1
If we subtract 77 from 100, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 10:
77 can be fit into 230 2 times, resulting in a remainder of 76.
Use 2 as the next digit of our solution. 
Result so far: 1059275.12
If we subtract 154 from 230, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 11:
760 divided by 77 is 9 with a remainder of 67.
The next digit of our result is 9. 
Result so far: 1059275.129
Subtract 693 from 760 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 12:
77 goes into 670 8 times with a remainder of 54.
The next digit of our result is 8. 
Result so far: 1059275.1298
Subtract 616 from 670 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 13:
77 goes into 540 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 1059275.12987
Subtract 539 from 540 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 14:
77 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 1059275.12987
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 15:
77 goes into 100 1 times with a remainder of 23.
Write down 1 as next digit of the result. 
Result so far: 1059275.1298701
Deduct 77 from 100 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 16:
230 divided by 77 is 2 with a remainder of 76.
Use 2 as the next digit of our solution. 
Result so far: 1059275.12987012
Subtract 154 from 230 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The final outcome is 1059275.12987012, with a leftover of 7.6e-08.