646063 divided by 12 
The aim is to understand the frequency of 12 in 646063.

Moving on to step 1:
When dividing 6 by 12, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 12

Advancing to step 2:
If we divide 64 by 12, we get 5 and a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 60 from 64, we get 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 12

Step 3:
46 divided by 12 is 3 with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 53.0
Subtracting 36 from 46 leaves us with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 12

Advancing to step 4:
12 can be fit into 100 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 538.0
If we take 96 away from 100, we end up with 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 12

Let's proceed to step 5:
12 can be fit into 46 3 times, resulting in a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 5383.0
If we take 36 away from 46, we end up with 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 12

Advancing to step 6:
12 can be fit into 103 8 times, resulting in a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 53838.0
Subtract 96 from 103 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
When dividing 70 by 12, we get 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 53838.5
If we subtract 60 from 70, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
12 can be fit into 100 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 53838.58
Deduct 96 from 100 and we're left 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 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 53838.583
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 10:
If we divide 40 by 12, we get 3 and a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 53838.5833
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.

Our division results in 53838.5833 with a remaining 4e-05.