We look at the division of 520941 by 80 
The aim is to understand the frequency of 80 in 520941.

Step 1:
When dividing 5 by 80, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 80

On to step 2:
The number 80 fits into 52 0 times, leaving a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 52 and we're left with 52.
Take the next digit (0) from the dividend and append it to 52, then repeat: 520 / 80

Going ahead to step 3:
520 divided by 80 is 6 with a remainder of 40.
The next digit of our result is 6. 
Result so far: 6.0
The remainder is 40 after subtracting 480 from 520.
Grab the next digit (9) from the dividend, add it to 40, then carry on: 409 / 80

Moving on to step 4:
80 goes into 409 5 times with a remainder of 9.
The next digit of our result is 5. 
Result so far: 65.0
If we subtract 400 from 409, we get 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 80

Going ahead to step 5:
When dividing 94 by 80, we get 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 651.0
If we take 80 away from 94, we end up with 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 80

On to step 6:
If we divide 141 by 80, we get 1 and a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 6511.0
If we subtract 80 from 141, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 7:
80 can be fit into 610 7 times, resulting in a remainder of 50.
Use 7 as the next digit of our solution. 
Result so far: 6511.7
If we subtract 560 from 610, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 8:
80 can be fit into 500 6 times, resulting in a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 6511.76
Subtract 480 from 500 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
When dividing 200 by 80, we get 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 6511.762
Subtract 160 from 200 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 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 6511.7625
The remainder is 0 after subtracting 400 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
If we divide 0 by 80, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 6511.7625
The remainder is 0 after subtracting 0 from 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 12:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6511.7625
If we subtract 0 from 0, 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 6511.7625 with a remainder of 0.0.