We divide 520320 by 80
The aim is to understand the frequency of 80 in 520320.

Step 1:
80 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 80

Advancing to step 2:
If we divide 52 by 80, we get 0 and a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Append the next digit (0) from the dividend to 52 and continue with: 520 / 80

Advancing to step 3:
The number 80 fits into 520 6 times, leaving a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 480 from 520 leaves us with 40.
Append the next digit (3) from the dividend to 40 and continue with: 403 / 80

Step 4:
When dividing 403 by 80, we get 5 with a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 65.0
The remainder is 3 after subtracting 400 from 403.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 80

On to step 5:
80 goes into 32 0 times with a remainder of 32.
Put 0 as the next digit of the answer. 
Result so far: 650.0
If we take 0 away from 32, we end up with 32.
Include the next digit (0) from the dividend after 32, then repeat: 320 / 80

Moving on to step 6:
80 can be fit into 320 4 times, resulting in a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 6504.0
If we subtract 320 from 320, 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.

Going ahead to step 7:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6504.0
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.

Advancing to step 8:
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: 6504.0
Subtracting 0 from 0 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.

The quotient of the division is 6504.0, and the remainder is 0.0.