42168 ÷ 80 
The aim is to understand the frequency of 80 in 42168.

Moving on to step 1:
80 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 80

Going ahead to step 2:
80 can be fit into 42 0 times, resulting in a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Append the next digit (1) from the dividend to 42 and continue with: 421 / 80

Advancing to step 3:
421 divided by 80 is 5 with a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 400 away from 421, we end up with 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 80

Step 4:
216 divided by 80 is 2 with a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 52.0
Deduct 160 from 216 and we're left with 56.
Fetch the next digit (8) from the dividend, attach it to 56 and continue: 568 / 80

Advancing to step 5:
568 divided by 80 is 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 527.0
Subtract 560 from 568 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 6:
80 goes into 80 1 times with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 527.1
Subtracting 80 from 80 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 7:
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: 527.1
If we take 0 away from 0, we end up 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.

Step 8:
If we divide 0 by 80, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 527.1
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.

The final outcome is 527.1, with a leftover of 0.0.