513647 ÷ 12 
The aim is to understand the frequency of 12 in 513647.

Step 1:
12 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 12

Going ahead to step 2:
51 divided by 12 is 4 with a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 48 away from 51, we end up with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 12

Advancing to step 3:
12 can be fit into 33 2 times, resulting in a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
The remainder is 9 after subtracting 24 from 33.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 12

On to step 4:
12 can be fit into 96 8 times, resulting in a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 428.0
The remainder is 0 after subtracting 96 from 96.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 12

Going ahead to step 5:
If we divide 4 by 12, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 4280.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 12

Advancing to step 6:
The number 12 fits into 47 3 times, leaving a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 42803.0
Subtracting 36 from 47 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
110 divided by 12 is 9 with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 42803.9
Subtract 108 from 110 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
12 goes into 20 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 42803.91
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 9:
12 goes into 80 6 times with a remainder of 8.
The next digit of our result is 6. 
Result so far: 42803.916
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 10:
If we divide 80 by 12, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 42803.9166
Subtracting 72 from 80 leaves us 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.

The quotient of the division is 42803.9166, and the remainder is 8e-05.