We look at the division of 539341 by 39 
The aim is to understand the frequency of 39 in 539341.

Let's proceed to step 1:
5 divided by 39 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 39

Advancing to step 2:
53 divided by 39 is 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 39 from 53 and we're left with 14.
Append the next digit (9) from the dividend to 14 and continue with: 149 / 39

Moving on to step 3:
When dividing 149 by 39, we get 3 with a remainder of 32.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 117 away from 149, we end up with 32.
Grab the next digit (3) from the dividend, add it to 32, then carry on: 323 / 39

Advancing to step 4:
39 goes into 323 8 times with a remainder of 11.
Use 8 as the next digit of our solution. 
Result so far: 138.0
Subtracting 312 from 323 leaves us with 11.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 39

Let's proceed to step 5:
39 goes into 114 2 times with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 1382.0
Deduct 78 from 114 and we're left with 36.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 39

Moving on to step 6:
39 can be fit into 361 9 times, resulting in a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 13829.0
If we subtract 351 from 361, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
39 goes into 100 2 times with a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 13829.2
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
220 divided by 39 is 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 13829.25
Deduct 195 from 220 and we're left 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.

Going ahead to step 9:
39 goes into 250 6 times with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 13829.256
The remainder is 16 after subtracting 234 from 250.
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 10:
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: 13829.2564
If we subtract 156 from 160, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
If we divide 40 by 39, we get 1 and a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 13829.25641
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.

On to step 12:
The number 39 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 13829.25641
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.

Going ahead to step 13:
When dividing 100 by 39, we get 2 with a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 13829.2564102
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 14:
The number 39 fits into 220 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 13829.25641025
Subtract 195 from 220 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 13829.25641025 with a remaining 2.5e-08.