We're dividing 130405 by 39 
The aim is to understand the frequency of 39 in 130405.

Let's proceed to step 1:
39 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 39

Advancing to step 2:
39 can be fit into 13 0 times, resulting in a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 39

Going ahead to step 3:
39 can be fit into 130 3 times, resulting in a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 117 from 130, we get 13.
Bring next digit (4) of the dividend behind the 13 and repeat the process: 134 / 39

Going ahead to step 4:
39 can be fit into 134 3 times, resulting in a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 33.0
Subtracting 117 from 134 leaves us with 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 39

Let's proceed to step 5:
If we divide 170 by 39, we get 4 and a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 334.0
The remainder is 14 after subtracting 156 from 170.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 39

Moving on to step 6:
145 divided by 39 is 3 with a remainder of 28.
The next digit of our result is 3. 
Result so far: 3343.0
Deduct 117 from 145 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 7:
The number 39 fits into 280 7 times, leaving a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 3343.7
Deduct 273 from 280 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 8:
39 can be fit into 70 1 times, resulting in a remainder of 31.
Record the quotient 1 as the next digit in the result. 
Result so far: 3343.71
The remainder is 31 after subtracting 39 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 9:
The number 39 fits into 310 7 times, leaving a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 3343.717
If we take 273 away from 310, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 10:
The number 39 fits into 370 9 times, leaving a remainder of 19.
The next digit of our result is 9. 
Result so far: 3343.7179
The remainder is 19 after subtracting 351 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 11:
39 goes into 190 4 times with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 3343.71794
If we take 156 away from 190, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 12:
39 goes into 340 8 times with a remainder of 28.
The next digit of our result is 8. 
Result so far: 3343.717948
The remainder is 28 after subtracting 312 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 13:
39 goes into 280 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 3343.7179487
Subtracting 273 from 280 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 14:
39 can be fit into 70 1 times, resulting in a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 3343.71794871
The remainder is 31 after subtracting 39 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The final outcome is 3343.71794871, with a leftover of 3.1e-08.