We look at the division of 541597 by 12 
The aim is to understand the frequency of 12 in 541597.

On to step 1:
When dividing 5 by 12, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 12

Advancing to step 2:
12 goes into 54 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 48 from 54 to get 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 12

Going ahead to step 3:
61 divided by 12 is 5 with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 45.0
Subtracting 60 from 61 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 12

Let's proceed to step 4:
12 goes into 15 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 451.0
If we take 12 away from 15, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 12

Step 5:
12 can be fit into 39 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 4513.0
The remainder is 3 after subtracting 36 from 39.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 12

Advancing to step 6:
If we divide 37 by 12, we get 3 and a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 45133.0
If we subtract 36 from 37, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
12 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 45133.0
Deduct 0 from 10 and we're left with 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:
100 divided by 12 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 45133.08
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
40 divided by 12 is 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 45133.083
Subtracting 36 from 40 leaves us 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.

Let's proceed to step 10:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The next digit of our result is 3. 
Result so far: 45133.0833
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 45133.0833 with a remainder of 4e-05.