We look at the division of 89278 by 42 
The aim is to understand the frequency of 42 in 89278.

Step 1:
8 divided by 42 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 42

Step 2:
89 divided by 42 is 2 with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 84 from 89 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 42

Step 3:
When dividing 52 by 42, we get 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtracting 42 from 52 leaves us with 10.
Fetch the next digit (7) from the dividend, attach it to 10 and continue: 107 / 42

Going ahead to step 4:
The number 42 fits into 107 2 times, leaving a remainder of 23.
The number 2 becomes the next digit in our result. 
Result so far: 212.0
If we take 84 away from 107, we end up with 23.
Append the next digit (8) from the dividend to 23 and continue with: 238 / 42

Let's proceed to step 5:
The number 42 fits into 238 5 times, leaving a remainder of 28.
Put 5 as the next digit of the answer. 
Result so far: 2125.0
The remainder is 28 after subtracting 210 from 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 6:
If we divide 280 by 42, we get 6 and a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 2125.6
Subtracting 252 from 280 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
When dividing 280 by 42, we get 6 with a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 2125.66
Subtracting 252 from 280 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

After the division, we end up with 2125.66 and a remainder of 0.028.