80323618 ÷ 81 
We want to divide 80323618 by 81.

Moving on to step 1:
The number 81 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 81

On to step 2:
The number 81 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Bring next digit (3) of the dividend behind the 80 and repeat the process: 803 / 81

Step 3:
When dividing 803 by 81, we get 9 with a remainder of 74.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 729 from 803 leaves us with 74.
Grab the next digit (2) from the dividend, add it to 74, then carry on: 742 / 81

Moving on to step 4:
81 goes into 742 9 times with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 99.0
The remainder is 13 after subtracting 729 from 742.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 81

Going ahead to step 5:
When dividing 133 by 81, we get 1 with a remainder of 52.
Use 1 as the next digit of our solution. 
Result so far: 991.0
Subtract 81 from 133 to get 52.
Append the next digit (6) from the dividend to 52 and continue with: 526 / 81

Step 6:
If we divide 526 by 81, we get 6 and a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 9916.0
If we take 486 away from 526, we end up with 40.
Take the next digit (1) from the dividend and append it to 40, then repeat: 401 / 81

Moving on to step 7:
401 divided by 81 is 4 with a remainder of 77.
The next digit of our result is 4. 
Result so far: 99164.0
If we subtract 324 from 401, we get 77.
Fetch the next digit (8) from the dividend, attach it to 77 and continue: 778 / 81

Going ahead to step 8:
81 can be fit into 778 9 times, resulting in a remainder of 49.
Write down 9 as next digit of the result. 
Result so far: 991649.0
Subtract 729 from 778 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 9:
81 can be fit into 490 6 times, resulting in a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 991649.6
The remainder is 4 after subtracting 486 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
81 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 991649.6
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 11:
When dividing 400 by 81, we get 4 with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 991649.604
Deduct 324 from 400 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 12:
81 can be fit into 760 9 times, resulting in a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 991649.6049
The remainder is 31 after subtracting 729 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 13:
The number 81 fits into 310 3 times, leaving a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 991649.60493
Deduct 243 from 310 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 14:
The number 81 fits into 670 8 times, leaving a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 991649.604938
Deduct 648 from 670 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 15:
81 can be fit into 220 2 times, resulting in a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 991649.6049382
The remainder is 58 after subtracting 162 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 16:
81 goes into 580 7 times with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 991649.60493827
The remainder is 13 after subtracting 567 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 991649.60493827 with a balance of 1.3e-08.