We're dividing 204957 by 12 
The aim is to understand the frequency of 12 in 204957.

Step 1:
2 divided by 12 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 12

Going ahead to step 2:
12 goes into 20 1 times with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 8 after subtracting 12 from 20.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 12

Step 3:
If we divide 84 by 12, we get 7 and a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 84 from 84 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 12

Advancing to step 4:
12 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 170.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 12

Step 5:
The number 12 fits into 95 7 times, leaving a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 1707.0
If we take 84 away from 95, we end up with 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 12

Moving on to step 6:
If we divide 117 by 12, we get 9 and a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 17079.0
Deduct 108 from 117 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
When dividing 90 by 12, we get 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 17079.7
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
If we divide 60 by 12, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 17079.75
Subtracting 60 from 60 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.

Let's proceed to step 9:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 17079.75
If we subtract 0 from 0, we 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.

Moving on to step 10:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 17079.75
Subtract 0 from 0 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.

After the division, we end up with 17079.75 and a remainder of 0.0.