We're dividing 505442 by 12 
The aim is to understand the frequency of 12 in 505442.

Step 1:
5 divided by 12 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 12

Step 2:
12 can be fit into 50 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 48 from 50, we get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 12

On to step 3:
The number 12 fits into 25 2 times, leaving a remainder of 1.
The next digit of our result is 2. 
Result so far: 42.0
If we subtract 24 from 25, we get 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 12

Advancing to step 4:
When dividing 14 by 12, we get 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 421.0
Subtracting 12 from 14 leaves us with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 12

Going ahead to step 5:
12 can be fit into 24 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 4212.0
If we subtract 24 from 24, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 12

Moving on to step 6:
12 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 42120.0
Subtracting 0 from 2 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
If we divide 20 by 12, we get 1 and a remainder of 8.
The next digit of our result is 1. 
Result so far: 42120.1
If we subtract 12 from 20, we 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.

Let's proceed to step 8:
80 divided by 12 is 6 with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 42120.16
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
80 divided by 12 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 42120.166
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 42120.166 with a balance of 0.0008.