We're dividing 243688 by 39 
The aim is to understand the frequency of 39 in 243688.

Moving on to step 1:
If we divide 2 by 39, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 39

On to step 2:
If we divide 24 by 39, we get 0 and a remainder of 24.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 24 leaves us with 24.
Append the next digit (3) from the dividend to 24 and continue with: 243 / 39

Advancing to step 3:
39 can be fit into 243 6 times, resulting in a remainder of 9.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 234 from 243 leaves us with 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 39

Advancing to step 4:
When dividing 96 by 39, we get 2 with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 62.0
If we take 78 away from 96, we end up with 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 39

Going ahead to step 5:
If we divide 188 by 39, we get 4 and a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 624.0
Subtracting 156 from 188 leaves us with 32.
Take the next digit (8) from the dividend and append it to 32, then repeat: 328 / 39

Going ahead to step 6:
328 divided by 39 is 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 6248.0
If we take 312 away from 328, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
160 divided by 39 is 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 6248.4
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
40 divided by 39 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 6248.41
Subtract 39 from 40 to 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.

Let's proceed to step 9:
39 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 6248.41
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.

Moving on to step 10:
The number 39 fits into 100 2 times, leaving a remainder of 22.
Put 2 as the next digit of the answer. 
Result so far: 6248.4102
Subtracting 78 from 100 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 11:
When dividing 220 by 39, we get 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 6248.41025
If we take 195 away from 220, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 12:
If we divide 250 by 39, we get 6 and a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 6248.410256
Deduct 234 from 250 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
When dividing 160 by 39, we get 4 with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 6248.4102564
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
The number 39 fits into 40 1 times, leaving a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 6248.41025641
The remainder is 1 after subtracting 39 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 6248.41025641 with a remaining 1e-09.