We look at the division of 343602 by 42 
The aim is to understand the frequency of 42 in 343602.

Let's proceed to step 1:
42 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 42

Advancing to step 2:
42 goes into 34 0 times with a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 34 leaves us with 34.
Fetch the next digit (3) from the dividend, attach it to 34 and continue: 343 / 42

Moving on to step 3:
When dividing 343 by 42, we get 8 with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 336 from 343 and we're left with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 42

Let's proceed to step 4:
76 divided by 42 is 1 with a remainder of 34.
The next digit of our result is 1. 
Result so far: 81.0
Subtracting 42 from 76 leaves us with 34.
Append the next digit (0) from the dividend to 34 and continue with: 340 / 42

Going ahead to step 5:
340 divided by 42 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 818.0
If we take 336 away from 340, we end up with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 42

Let's proceed to step 6:
42 goes into 42 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 8181.0
Subtract 42 from 42 to 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.

Step 7:
42 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 8181.0
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.

On to step 8:
42 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 8181.0
Subtract 0 from 0 to 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 quotient of the division is 8181.0, and the remainder is 0.0.