We look at the division of 613436 by 12 
The aim is to understand the frequency of 12 in 613436.

Step 1:
12 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 12

Step 2:
61 divided by 12 is 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 60 from 61 and we're left with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 12

Going ahead to step 3:
When dividing 13 by 12, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
Subtracting 12 from 13 leaves us with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 12

On to step 4:
12 goes into 14 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 511.0
Subtract 12 from 14 to get 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 12

Going ahead to step 5:
23 divided by 12 is 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 5111.0
Subtract 12 from 23 to get 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 12

Going ahead to step 6:
If we divide 116 by 12, we get 9 and a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 51119.0
If we take 108 away from 116, 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.

Moving on to step 7:
12 goes into 80 6 times with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 51119.6
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
The number 12 fits into 80 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 51119.66
Subtract 72 from 80 to 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.

The final result is 51119.66 with a remainder of 0.008.