We look at the division of 446446 by 42 
The aim is to understand the frequency of 42 in 446446.

Advancing to step 1:
If we divide 4 by 42, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 42

Step 2:
The number 42 fits into 44 1 times, leaving a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 42 from 44 to get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 42

Let's proceed to step 3:
The number 42 fits into 26 0 times, leaving a remainder of 26.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 26 and we're left with 26.
Bring next digit (4) of the dividend behind the 26 and repeat the process: 264 / 42

Step 4:
The number 42 fits into 264 6 times, leaving a remainder of 12.
The next digit of our result is 6. 
Result so far: 106.0
If we subtract 252 from 264, we get 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 42

Moving on to step 5:
The number 42 fits into 124 2 times, leaving a remainder of 40.
The next digit of our result is 2. 
Result so far: 1062.0
Subtract 84 from 124 to get 40.
Include the next digit (6) from the dividend after 40, then repeat: 406 / 42

On to step 6:
The number 42 fits into 406 9 times, leaving a remainder of 28.
The next digit of our result is 9. 
Result so far: 10629.0
If we take 378 away from 406, we end up 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:
42 goes into 280 6 times with a remainder of 28.
The next digit of our result is 6. 
Result so far: 10629.6
Deduct 252 from 280 and we're left 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.

Step 8:
42 goes into 280 6 times with a remainder of 28.
The next digit of our result is 6. 
Result so far: 10629.66
Deduct 252 from 280 and we're left 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.

The final outcome is 10629.66, with a leftover of 0.028.