We look at the division of 66962420 by 4 
The aim is to understand the frequency of 4 in 66962420.

Going ahead to step 1:
4 goes into 6 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 4 away from 6, we end up with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 4

Going ahead to step 2:
When dividing 26 by 4, we get 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 24 from 26 leaves us with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 4

Advancing to step 3:
When dividing 29 by 4, we get 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 167.0
If we subtract 28 from 29, we get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 4

On to step 4:
When dividing 16 by 4, we get 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 1674.0
The remainder is 0 after subtracting 16 from 16.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 4

Let's proceed to step 5:
4 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 16740.0
If we subtract 0 from 2, we get 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 4

Step 6:
The number 4 fits into 24 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 167406.0
Subtracting 24 from 24 leaves us with 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 4

Moving on to step 7:
2 divided by 4 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 1674060.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 4

Let's proceed to step 8:
20 divided by 4 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 16740605.0
If we subtract 20 from 20, 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.

Advancing to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 16740605.0
The remainder is 0 after subtracting 0 from 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 10:
When dividing 0 by 4, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 16740605.0
Deduct 0 from 0 and we're left 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.

The final result is 16740605.0 with a remainder of 0.0.