We're dividing 646696 by 12 
The aim is to understand the frequency of 12 in 646696.

On to step 1:
12 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 12

Going ahead to step 2:
64 divided by 12 is 5 with a remainder of 4.
The next digit of our result is 5. 
Result so far: 5.0
If we take 60 away from 64, we end up with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 12

Let's proceed to step 3:
12 goes into 46 3 times with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 53.0
If we subtract 36 from 46, we get 10.
Take the next digit (6) from the dividend and append it to 10, then repeat: 106 / 12

Step 4:
12 can be fit into 106 8 times, resulting in a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 538.0
Subtracting 96 from 106 leaves us with 10.
Append the next digit (9) from the dividend to 10 and continue with: 109 / 12

Moving on to step 5:
109 divided by 12 is 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 5389.0
If we subtract 108 from 109, we get 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 12

Advancing to step 6:
If we divide 16 by 12, we get 1 and a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 53891.0
If we take 12 away from 16, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 53891.3
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
40 divided by 12 is 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 53891.33
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 53891.33 with a balance of 0.004.