We look at the division of 209939 by 80 
The aim is to understand the frequency of 80 in 209939.

Going ahead to step 1:
80 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 80

Step 2:
If we divide 20 by 80, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 80

Moving on to step 3:
80 goes into 209 2 times with a remainder of 49.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 49 after subtracting 160 from 209.
Grab the next digit (9) from the dividend, add it to 49, then carry on: 499 / 80

Advancing to step 4:
80 goes into 499 6 times with a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we take 480 away from 499, we end up with 19.
Fetch the next digit (3) from the dividend, attach it to 19 and continue: 193 / 80

On to step 5:
If we divide 193 by 80, we get 2 and a remainder of 33.
The next digit of our result is 2. 
Result so far: 262.0
Subtracting 160 from 193 leaves us with 33.
Fetch the next digit (9) from the dividend, attach it to 33 and continue: 339 / 80

Moving on to step 6:
When dividing 339 by 80, we get 4 with a remainder of 19.
Write down 4 as next digit of the result. 
Result so far: 2624.0
Deduct 320 from 339 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
80 goes into 190 2 times with a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 2624.2
The remainder is 30 after subtracting 160 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
300 divided by 80 is 3 with a remainder of 60.
The next digit of our result is 3. 
Result so far: 2624.23
The remainder is 60 after subtracting 240 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
When dividing 600 by 80, we get 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 2624.237
If we subtract 560 from 600, we 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.

Step 10:
If we divide 400 by 80, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 2624.2375
Subtracting 400 from 400 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.

Let's proceed to step 11:
80 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 2624.2375
Deduct 0 from 0 and we're left 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.

Going ahead to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2624.2375
Deduct 0 from 0 and we're left 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 outcome is 2624.2375, with a leftover of 0.0.