We look at the division of 512844 by 80 
The aim is to understand the frequency of 80 in 512844.

Let's proceed to step 1:
80 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 80

Step 2:
51 divided by 80 is 0 with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 80

Step 3:
If we divide 512 by 80, we get 6 and a remainder of 32.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 480 from 512 and we're left with 32.
Take the next digit (8) from the dividend and append it to 32, then repeat: 328 / 80

Step 4:
If we divide 328 by 80, we get 4 and a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 64.0
Subtract 320 from 328 to get 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 80

Going ahead to step 5:
80 can be fit into 84 1 times, resulting in a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 641.0
Subtracting 80 from 84 leaves us with 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 80

Moving on to step 6:
If we divide 44 by 80, we get 0 and a remainder of 44.
The next digit of our result is 0. 
Result so far: 6410.0
If we take 0 away from 44, we end up 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:
When dividing 440 by 80, we get 5 with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 6410.5
The remainder is 40 after subtracting 400 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 6410.55
If we take 400 away from 400, 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.

The final result is 6410.55 with a remainder of 0.0.