We look at the division of 983982 by 80 
The aim is to understand the frequency of 80 in 983982.

Going ahead to step 1:
80 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 80

Advancing to step 2:
When dividing 98 by 80, we get 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 80 from 98 and we're left with 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 80

Going ahead to step 3:
183 divided by 80 is 2 with a remainder of 23.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 160 from 183 and we're left with 23.
Append the next digit (9) from the dividend to 23 and continue with: 239 / 80

Step 4:
239 divided by 80 is 2 with a remainder of 79.
The number 2 becomes the next digit in our result. 
Result so far: 122.0
The remainder is 79 after subtracting 160 from 239.
Fetch the next digit (8) from the dividend, attach it to 79 and continue: 798 / 80

Going ahead to step 5:
80 goes into 798 9 times with a remainder of 78.
The number 9 becomes the next digit in our result. 
Result so far: 1229.0
Deduct 720 from 798 and we're left with 78.
Append the next digit (2) from the dividend to 78 and continue with: 782 / 80

On to step 6:
80 can be fit into 782 9 times, resulting in a remainder of 62.
Put 9 as the next digit of the answer. 
Result so far: 12299.0
If we subtract 720 from 782, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 7:
80 can be fit into 620 7 times, resulting in a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 12299.7
Deduct 560 from 620 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
600 divided by 80 is 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 12299.77
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 12299.77 and a remainder of 0.04.