871174 divided by 80 
The aim is to understand the frequency of 80 in 871174.

Step 1:
When dividing 8 by 80, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 80

Advancing to step 2:
When dividing 87 by 80, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 7 after subtracting 80 from 87.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 80

Step 3:
80 goes into 71 0 times with a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 71, we end up with 71.
Include the next digit (1) from the dividend after 71, then repeat: 711 / 80

Moving on to step 4:
80 goes into 711 8 times with a remainder of 71.
The next digit of our result is 8. 
Result so far: 108.0
If we take 640 away from 711, we end up with 71.
Grab the next digit (7) from the dividend, add it to 71, then carry on: 717 / 80

Advancing to step 5:
80 goes into 717 8 times with a remainder of 77.
Record the quotient 8 as the next digit in the result. 
Result so far: 1088.0
Subtract 640 from 717 to get 77.
Take the next digit (4) from the dividend and append it to 77, then repeat: 774 / 80

Let's proceed to step 6:
The number 80 fits into 774 9 times, leaving a remainder of 54.
Write down 9 as next digit of the result. 
Result so far: 10889.0
Deduct 720 from 774 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
540 divided by 80 is 6 with a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 10889.6
Subtract 480 from 540 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 8:
When dividing 600 by 80, we get 7 with a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 10889.67
Subtracting 560 from 600 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
80 goes into 400 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 10889.675
Deduct 400 from 400 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.

Moving on to step 10:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10889.675
Subtract 0 from 0 to 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.

On to step 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10889.675
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.

Our division results in 10889.675 with a remaining 0.0.