We look at the division of 407724 by 80 
The aim is to understand the frequency of 80 in 407724.

Going ahead to step 1:
80 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 80

Advancing to step 2:
80 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Take the next digit (7) from the dividend and append it to 40, then repeat: 407 / 80

On to step 3:
80 can be fit into 407 5 times, resulting in a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 400 from 407, we get 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 80

Let's proceed to step 4:
77 divided by 80 is 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
Subtracting 0 from 77 leaves us with 77.
Grab the next digit (2) from the dividend, add it to 77, then carry on: 772 / 80

On to step 5:
When dividing 772 by 80, we get 9 with a remainder of 52.
Write down 9 as next digit of the result. 
Result so far: 509.0
If we subtract 720 from 772, we get 52.
Include the next digit (4) from the dividend after 52, then repeat: 524 / 80

Moving on to step 6:
524 divided by 80 is 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 5096.0
Subtracting 480 from 524 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 7:
80 goes into 440 5 times with a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 5096.5
Subtract 400 from 440 to 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.

Going ahead to step 8:
When dividing 400 by 80, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 5096.55
If we subtract 400 from 400, 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.

The final result is 5096.55 with a remainder of 0.0.