204024 ÷ 39 
The aim is to understand the frequency of 39 in 204024.

On to step 1:
39 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 39

Let's proceed to step 2:
The number 39 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Grab the next digit (4) from the dividend, add it to 20, then carry on: 204 / 39

Advancing to step 3:
If we divide 204 by 39, we get 5 and a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 195 from 204 to get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 39

Let's proceed to step 4:
The number 39 fits into 90 2 times, leaving a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 52.0
The remainder is 12 after subtracting 78 from 90.
Include the next digit (2) from the dividend after 12, then repeat: 122 / 39

Step 5:
39 can be fit into 122 3 times, resulting in a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 523.0
Subtract 117 from 122 to get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 39

Advancing to step 6:
39 can be fit into 54 1 times, resulting in a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 5231.0
Deduct 39 from 54 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
The number 39 fits into 150 3 times, leaving a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 5231.3
If we take 117 away from 150, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 8:
If we divide 330 by 39, we get 8 and a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 5231.38
Subtracting 312 from 330 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 9:
180 divided by 39 is 4 with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 5231.384
Subtract 156 from 180 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 10:
240 divided by 39 is 6 with a remainder of 6.
The next digit of our result is 6. 
Result so far: 5231.3846
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 11:
39 can be fit into 60 1 times, resulting in a remainder of 21.
The next digit of our result is 1. 
Result so far: 5231.38461
If we subtract 39 from 60, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 12:
39 goes into 210 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 5231.384615
Subtract 195 from 210 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 13:
If we divide 150 by 39, we get 3 and a remainder of 33.
The next digit of our result is 3. 
Result so far: 5231.3846153
If we subtract 117 from 150, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 14:
If we divide 330 by 39, we get 8 and a remainder of 18.
The next digit of our result is 8. 
Result so far: 5231.38461538
If we take 312 away from 330, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 5231.38461538 and a remainder of 1.8e-08.