We divide 159422 by 80
The aim is to understand the frequency of 80 in 159422.

Let's proceed to step 1:
80 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 80

On to step 2:
If we divide 15 by 80, we get 0 and a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 80

On to step 3:
If we divide 159 by 80, we get 1 and a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 79 after subtracting 80 from 159.
Fetch the next digit (4) from the dividend, attach it to 79 and continue: 794 / 80

Going ahead to step 4:
794 divided by 80 is 9 with a remainder of 74.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 720 from 794 to get 74.
Fetch the next digit (2) from the dividend, attach it to 74 and continue: 742 / 80

Step 5:
80 goes into 742 9 times with a remainder of 22.
Use 9 as the next digit of our solution. 
Result so far: 199.0
If we take 720 away from 742, we end up with 22.
Take the next digit (2) from the dividend and append it to 22, then repeat: 222 / 80

Going ahead to step 6:
When dividing 222 by 80, we get 2 with a remainder of 62.
Use 2 as the next digit of our solution. 
Result so far: 1992.0
If we take 160 away from 222, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 7:
80 goes into 620 7 times with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 1992.7
The remainder is 60 after subtracting 560 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 8:
When dividing 600 by 80, we get 7 with a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 1992.77
If we take 560 away from 600, we end up 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 1992.77 and a remainder of 0.04.