We're dividing 329899 by 80 
The aim is to understand the frequency of 80 in 329899.

On to step 1:
The number 80 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 80

On to step 2:
When dividing 32 by 80, we get 0 with a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 32 after subtracting 0 from 32.
Bring next digit (9) of the dividend behind the 32 and repeat the process: 329 / 80

Advancing to step 3:
80 goes into 329 4 times with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 320 away from 329, we end up with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 80

On to step 4:
The number 80 fits into 98 1 times, leaving a remainder of 18.
The next digit of our result is 1. 
Result so far: 41.0
The remainder is 18 after subtracting 80 from 98.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 80

On to step 5:
189 divided by 80 is 2 with a remainder of 29.
The next digit of our result is 2. 
Result so far: 412.0
Deduct 160 from 189 and we're left with 29.
Include the next digit (9) from the dividend after 29, then repeat: 299 / 80

Going ahead to step 6:
When dividing 299 by 80, we get 3 with a remainder of 59.
The next digit of our result is 3. 
Result so far: 4123.0
The remainder is 59 after subtracting 240 from 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 7:
80 can be fit into 590 7 times, resulting in a remainder of 30.
Write down 7 as next digit of the result. 
Result so far: 4123.7
If we take 560 away from 590, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
80 goes into 300 3 times with a remainder of 60.
The next digit of our result is 3. 
Result so far: 4123.73
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.

Step 9:
If we divide 600 by 80, we get 7 and a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 4123.737
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.

On to step 10:
400 divided by 80 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4123.7375
Deduct 400 from 400 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.

Advancing to step 11:
0 divided by 80 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4123.7375
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.

On to step 12:
80 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4123.7375
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.

The final outcome is 4123.7375, with a leftover of 0.0.