We look at the division of 80987197 by 75 
We want to figure out the number of times 80987197 can be divided by 75.

On to step 1:
8 divided by 75 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 75

On to step 2:
80 divided by 75 is 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 75 from 80, we get 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 75

Advancing to step 3:
75 goes into 59 0 times with a remainder of 59.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 59 to get 59.
Take the next digit (8) from the dividend and append it to 59, then repeat: 598 / 75

Going ahead to step 4:
75 can be fit into 598 7 times, resulting in a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 107.0
The remainder is 73 after subtracting 525 from 598.
Include the next digit (7) from the dividend after 73, then repeat: 737 / 75

Going ahead to step 5:
737 divided by 75 is 9 with a remainder of 62.
The number 9 becomes the next digit in our result. 
Result so far: 1079.0
The remainder is 62 after subtracting 675 from 737.
Append the next digit (1) from the dividend to 62 and continue with: 621 / 75

Moving on to step 6:
The number 75 fits into 621 8 times, leaving a remainder of 21.
Put 8 as the next digit of the answer. 
Result so far: 10798.0
If we take 600 away from 621, we end up with 21.
Grab the next digit (9) from the dividend, add it to 21, then carry on: 219 / 75

Moving on to step 7:
75 goes into 219 2 times with a remainder of 69.
Use 2 as the next digit of our solution. 
Result so far: 107982.0
Subtracting 150 from 219 leaves us with 69.
Grab the next digit (7) from the dividend, add it to 69, then carry on: 697 / 75

Step 8:
If we divide 697 by 75, we get 9 and a remainder of 22.
Use 9 as the next digit of our solution. 
Result so far: 1079829.0
If we subtract 675 from 697, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
If we divide 220 by 75, we get 2 and a remainder of 70.
Use 2 as the next digit of our solution. 
Result so far: 1079829.2
Deduct 150 from 220 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
If we divide 700 by 75, we get 9 and a remainder of 25.
Use 9 as the next digit of our solution. 
Result so far: 1079829.29
Deduct 675 from 700 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 11:
The number 75 fits into 250 3 times, leaving a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 1079829.293
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 12:
When dividing 250 by 75, we get 3 with a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 1079829.2933
The remainder is 25 after subtracting 225 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 1079829.2933 with a remainder of 0.00025.