99875064 divided by 80 
Our goal is to divide 99875064 by 80.

Advancing to step 1:
The number 80 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 80

Advancing to step 2:
99 divided by 80 is 1 with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 80 from 99 to get 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 80

Step 3:
The number 80 fits into 198 2 times, leaving a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 160 from 198 and we're left with 38.
Grab the next digit (7) from the dividend, add it to 38, then carry on: 387 / 80

On to step 4:
387 divided by 80 is 4 with a remainder of 67.
Put 4 as the next digit of the answer. 
Result so far: 124.0
Subtract 320 from 387 to get 67.
Grab the next digit (5) from the dividend, add it to 67, then carry on: 675 / 80

Step 5:
The number 80 fits into 675 8 times, leaving a remainder of 35.
Put 8 as the next digit of the answer. 
Result so far: 1248.0
If we subtract 640 from 675, we get 35.
Append the next digit (0) from the dividend to 35 and continue with: 350 / 80

Step 6:
80 can be fit into 350 4 times, resulting in a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 12484.0
If we subtract 320 from 350, we get 30.
Grab the next digit (6) from the dividend, add it to 30, then carry on: 306 / 80

Advancing to step 7:
80 goes into 306 3 times with a remainder of 66.
The number 3 becomes the next digit in our result. 
Result so far: 124843.0
Subtract 240 from 306 to get 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 80

Advancing to step 8:
When dividing 664 by 80, we get 8 with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 1248438.0
If we subtract 640 from 664, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 9:
80 can be fit into 240 3 times, resulting in a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 1248438.3
If we subtract 240 from 240, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
When dividing 0 by 80, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1248438.3
Deduct 0 from 0 and we're left 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.

On to step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1248438.3
Deduct 0 from 0 and we're left 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.

In conclusion, the division gives 1248438.3 with a balance of 0.0.