81536691 divided by 78 
We want to divide 81536691 by 78.

Let's proceed to step 1:
8 divided by 78 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 78

Going ahead to step 2:
78 can be fit into 81 1 times, resulting in a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 78 from 81, we get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 78

Moving on to step 3:
If we divide 35 by 78, we get 0 and a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 35 after subtracting 0 from 35.
Append the next digit (3) from the dividend to 35 and continue with: 353 / 78

Moving on to step 4:
When dividing 353 by 78, we get 4 with a remainder of 41.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
The remainder is 41 after subtracting 312 from 353.
Grab the next digit (6) from the dividend, add it to 41, then carry on: 416 / 78

On to step 5:
The number 78 fits into 416 5 times, leaving a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 1045.0
Deduct 390 from 416 and we're left with 26.
Grab the next digit (6) from the dividend, add it to 26, then carry on: 266 / 78

Going ahead to step 6:
The number 78 fits into 266 3 times, leaving a remainder of 32.
The number 3 becomes the next digit in our result. 
Result so far: 10453.0
Deduct 234 from 266 and we're left with 32.
Append the next digit (9) from the dividend to 32 and continue with: 329 / 78

On to step 7:
If we divide 329 by 78, we get 4 and a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 104534.0
Subtracting 312 from 329 leaves us with 17.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 78

Let's proceed to step 8:
If we divide 171 by 78, we get 2 and a remainder of 15.
The next digit of our result is 2. 
Result so far: 1045342.0
If we take 156 away from 171, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 9:
78 can be fit into 150 1 times, resulting in a remainder of 72.
Record the quotient 1 as the next digit in the result. 
Result so far: 1045342.1
Subtract 78 from 150 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 10:
720 divided by 78 is 9 with a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 1045342.19
If we subtract 702 from 720, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
180 divided by 78 is 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 1045342.192
The remainder is 24 after subtracting 156 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 12:
If we divide 240 by 78, we get 3 and a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 1045342.1923
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
78 goes into 60 0 times with a remainder of 60.
The next digit of our result is 0. 
Result so far: 1045342.1923
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 14:
If we divide 600 by 78, we get 7 and a remainder of 54.
The number 7 becomes the next digit in our result. 
Result so far: 1045342.192307
Subtract 546 from 600 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 15:
The number 78 fits into 540 6 times, leaving a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 1045342.1923076
Subtract 468 from 540 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 16:
720 divided by 78 is 9 with a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 1045342.19230769
Deduct 702 from 720 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 1045342.19230769 and a remainder of 1.8e-08.