81303134 divided by 80 
We want to figure out the number of times 81303134 can be divided by 80.

Going ahead to step 1:
The number 80 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 80

Moving on to step 2:
80 can be fit into 81 1 times, resulting in a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 80 from 81 leaves us with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 80

On to step 3:
80 can be fit into 13 0 times, resulting in a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 13 to get 13.
Grab the next digit (0) from the dividend, add it to 13, then carry on: 130 / 80

Advancing to step 4:
The number 80 fits into 130 1 times, leaving a remainder of 50.
Record the quotient 1 as the next digit in the result. 
Result so far: 101.0
Subtract 80 from 130 to get 50.
Grab the next digit (3) from the dividend, add it to 50, then carry on: 503 / 80

Advancing to step 5:
80 goes into 503 6 times with a remainder of 23.
Write down 6 as next digit of the result. 
Result so far: 1016.0
Subtract 480 from 503 to get 23.
Include the next digit (1) from the dividend after 23, then repeat: 231 / 80

Moving on to step 6:
When dividing 231 by 80, we get 2 with a remainder of 71.
The next digit of our result is 2. 
Result so far: 10162.0
Subtracting 160 from 231 leaves us with 71.
Take the next digit (3) from the dividend and append it to 71, then repeat: 713 / 80

Advancing to step 7:
The number 80 fits into 713 8 times, leaving a remainder of 73.
The number 8 becomes the next digit in our result. 
Result so far: 101628.0
Deduct 640 from 713 and we're left with 73.
Fetch the next digit (4) from the dividend, attach it to 73 and continue: 734 / 80

Moving on to step 8:
If we divide 734 by 80, we get 9 and a remainder of 14.
The next digit of our result is 9. 
Result so far: 1016289.0
The remainder is 14 after subtracting 720 from 734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 9:
When dividing 140 by 80, we get 1 with a remainder of 60.
Record the quotient 1 as the next digit in the result. 
Result so far: 1016289.1
Subtracting 80 from 140 leaves us 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.

Advancing to step 10:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 1016289.17
The remainder is 40 after subtracting 560 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
When dividing 400 by 80, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 1016289.175
Subtracting 400 from 400 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
0 divided by 80 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1016289.175
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 13:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 1016289.175
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 1016289.175 with a balance of 0.0.