We look at the division of 334515 by 39 
The aim is to understand the frequency of 39 in 334515.

Step 1:
When dividing 3 by 39, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 39

Moving on to step 2:
The number 39 fits into 33 0 times, leaving a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Include the next digit (4) from the dividend after 33, then repeat: 334 / 39

Going ahead to step 3:
39 can be fit into 334 8 times, resulting in a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 22 after subtracting 312 from 334.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 39

Let's proceed to step 4:
225 divided by 39 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
Deduct 195 from 225 and we're left with 30.
Take the next digit (1) from the dividend and append it to 30, then repeat: 301 / 39

Moving on to step 5:
39 goes into 301 7 times with a remainder of 28.
Put 7 as the next digit of the answer. 
Result so far: 857.0
Subtract 273 from 301 to get 28.
Grab the next digit (5) from the dividend, add it to 28, then carry on: 285 / 39

Step 6:
39 goes into 285 7 times with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 8577.0
Deduct 273 from 285 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
If we divide 120 by 39, we get 3 and a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 8577.3
If we subtract 117 from 120, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 8:
If we divide 30 by 39, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 8577.3
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
The number 39 fits into 300 7 times, leaving a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 8577.307
Subtracting 273 from 300 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 10:
39 can be fit into 270 6 times, resulting in a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 8577.3076
If we subtract 234 from 270, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 11:
If we divide 360 by 39, we get 9 and a remainder of 9.
The next digit of our result is 9. 
Result so far: 8577.30769
If we subtract 351 from 360, we get 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 12:
39 can be fit into 90 2 times, resulting in a remainder of 12.
The next digit of our result is 2. 
Result so far: 8577.307692
Deduct 78 from 90 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 13:
39 can be fit into 120 3 times, resulting in a remainder of 3.
The next digit of our result is 3. 
Result so far: 8577.3076923
Subtract 117 from 120 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 14:
The number 39 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 8577.3076923
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 8577.3076923, with a leftover of 3e-08.