379539 divided by 12 
The aim is to understand the frequency of 12 in 379539.

Advancing to step 1:
3 divided by 12 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 12

Going ahead to step 2:
37 divided by 12 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 36 from 37, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 12

On to step 3:
19 divided by 12 is 1 with a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Subtracting 12 from 19 leaves us with 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 12

Moving on to step 4:
12 goes into 75 6 times with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 316.0
Deduct 72 from 75 and we're left with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 12

Going ahead to step 5:
The number 12 fits into 33 2 times, leaving a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 3162.0
The remainder is 9 after subtracting 24 from 33.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 12

Going ahead to step 6:
The number 12 fits into 99 8 times, leaving a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 31628.0
Subtracting 96 from 99 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
30 divided by 12 is 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 31628.2
Deduct 24 from 30 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
If we divide 60 by 12, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 31628.25
Subtract 60 from 60 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
When dividing 0 by 12, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 31628.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
12 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 31628.25
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 31628.25 with a remainder of 0.0.