Let's divide 752145 by 39
The aim is to understand the frequency of 39 in 752145.

Advancing to step 1:
When dividing 7 by 39, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 39

Moving on to step 2:
When dividing 75 by 39, we get 1 with a remainder of 36.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 39 from 75 leaves us with 36.
Include the next digit (2) from the dividend after 36, then repeat: 362 / 39

Advancing to step 3:
39 goes into 362 9 times with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Deduct 351 from 362 and we're left with 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 39

Step 4:
111 divided by 39 is 2 with a remainder of 33.
Use 2 as the next digit of our solution. 
Result so far: 192.0
If we take 78 away from 111, we end up with 33.
Bring next digit (4) of the dividend behind the 33 and repeat the process: 334 / 39

Let's proceed to step 5:
334 divided by 39 is 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 1928.0
If we subtract 312 from 334, we get 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 39

Let's proceed to step 6:
The number 39 fits into 225 5 times, leaving a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 19285.0
If we take 195 away from 225, we end up 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.

Going ahead to step 7:
39 can be fit into 300 7 times, resulting in a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 19285.7
The remainder is 27 after subtracting 273 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 8:
39 goes into 270 6 times with a remainder of 36.
The next digit of our result is 6. 
Result so far: 19285.76
Subtracting 234 from 270 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 9:
When dividing 360 by 39, we get 9 with a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 19285.769
If we take 351 away from 360, we end up 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.

On to step 10:
39 can be fit into 90 2 times, resulting in a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 19285.7692
Subtracting 78 from 90 leaves us 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.

On to step 11:
The number 39 fits into 120 3 times, leaving a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 19285.76923
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.

Let's proceed to step 12:
When dividing 30 by 39, we get 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 19285.76923
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 13:
39 goes into 300 7 times with a remainder of 27.
The next digit of our result is 7. 
Result so far: 19285.7692307
If we subtract 273 from 300, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 14:
When dividing 270 by 39, we get 6 with a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 19285.76923076
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.

The final outcome is 19285.76923076, with a leftover of 3.6e-08.