We're dividing 54154631 by 80 
The aim is to understand the frequency of 80 in 54154631.

Moving on to step 1:
If we divide 5 by 80, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 80

Step 2:
If we divide 54 by 80, we get 0 and a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Take the next digit (1) from the dividend and append it to 54, then repeat: 541 / 80

Moving on to step 3:
If we divide 541 by 80, we get 6 and a remainder of 61.
The next digit of our result is 6. 
Result so far: 6.0
If we take 480 away from 541, we end up with 61.
Take the next digit (5) from the dividend and append it to 61, then repeat: 615 / 80

On to step 4:
80 goes into 615 7 times with a remainder of 55.
Use 7 as the next digit of our solution. 
Result so far: 67.0
The remainder is 55 after subtracting 560 from 615.
Bring next digit (4) of the dividend behind the 55 and repeat the process: 554 / 80

Let's proceed to step 5:
The number 80 fits into 554 6 times, leaving a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 676.0
If we take 480 away from 554, we end up with 74.
Take the next digit (6) from the dividend and append it to 74, then repeat: 746 / 80

Advancing to step 6:
80 goes into 746 9 times with a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 6769.0
Subtract 720 from 746 to get 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 80

Moving on to step 7:
The number 80 fits into 263 3 times, leaving a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 67693.0
If we take 240 away from 263, we end up with 23.
Include the next digit (1) from the dividend after 23, then repeat: 231 / 80

Let's proceed to step 8:
When dividing 231 by 80, we get 2 with a remainder of 71.
The next digit of our result is 2. 
Result so far: 676932.0
Deduct 160 from 231 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 9:
The number 80 fits into 710 8 times, leaving a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 676932.8
Deduct 640 from 710 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.

Moving on to step 10:
The number 80 fits into 700 8 times, leaving a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 676932.88
The remainder is 60 after subtracting 640 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 676932.88 with a remainder of 0.06.