We're dividing 71480241 by 80 
The aim is to understand the frequency of 80 in 71480241.

Step 1:
7 divided by 80 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 80

Step 2:
The number 80 fits into 71 0 times, leaving a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Bring next digit (4) of the dividend behind the 71 and repeat the process: 714 / 80

Let's proceed to step 3:
714 divided by 80 is 8 with a remainder of 74.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 640 away from 714, we end up with 74.
Fetch the next digit (8) from the dividend, attach it to 74 and continue: 748 / 80

Let's proceed to step 4:
80 goes into 748 9 times with a remainder of 28.
The next digit of our result is 9. 
Result so far: 89.0
The remainder is 28 after subtracting 720 from 748.
Grab the next digit (0) from the dividend, add it to 28, then carry on: 280 / 80

On to step 5:
80 can be fit into 280 3 times, resulting in a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 893.0
If we subtract 240 from 280, we get 40.
Bring next digit (2) of the dividend behind the 40 and repeat the process: 402 / 80

Advancing to step 6:
The number 80 fits into 402 5 times, leaving a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 8935.0
Subtracting 400 from 402 leaves us with 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 80

Let's proceed to step 7:
80 can be fit into 24 0 times, resulting in a remainder of 24.
Use 0 as the next digit of our solution. 
Result so far: 89350.0
Subtracting 0 from 24 leaves us with 24.
Grab the next digit (1) from the dividend, add it to 24, then carry on: 241 / 80

Moving on to step 8:
If we divide 241 by 80, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 893503.0
Deduct 240 from 241 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
10 divided by 80 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 893503.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
When dividing 100 by 80, we get 1 with a remainder of 20.
The next digit of our result is 1. 
Result so far: 893503.01
The remainder is 20 after subtracting 80 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 893503.012
If we subtract 160 from 200, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
When dividing 400 by 80, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 893503.0125
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 13:
80 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 893503.0125
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.

Let's proceed to step 14:
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: 893503.0125
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.

The final result is 893503.0125 with a remainder of 0.0.