We look at the division of 709629 by 39 
The aim is to understand the frequency of 39 in 709629.

Let's proceed to step 1:
The number 39 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 39

Moving on to step 2:
39 can be fit into 70 1 times, resulting in a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 39 from 70 and we're left with 31.
Bring next digit (9) of the dividend behind the 31 and repeat the process: 319 / 39

Step 3:
39 can be fit into 319 8 times, resulting in a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 312 from 319 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 39

Let's proceed to step 4:
When dividing 76 by 39, we get 1 with a remainder of 37.
The number 1 becomes the next digit in our result. 
Result so far: 181.0
Subtracting 39 from 76 leaves us with 37.
Include the next digit (2) from the dividend after 37, then repeat: 372 / 39

Going ahead to step 5:
39 goes into 372 9 times with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 1819.0
If we take 351 away from 372, we end up with 21.
Fetch the next digit (9) from the dividend, attach it to 21 and continue: 219 / 39

Going ahead to step 6:
The number 39 fits into 219 5 times, leaving a remainder of 24.
The next digit of our result is 5. 
Result so far: 18195.0
Deduct 195 from 219 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 7:
39 can be fit into 240 6 times, resulting in a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 18195.6
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
39 can be fit into 60 1 times, resulting in a remainder of 21.
The next digit of our result is 1. 
Result so far: 18195.61
If we take 39 away from 60, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 9:
39 goes into 210 5 times with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 18195.615
Deduct 195 from 210 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 10:
If we divide 150 by 39, we get 3 and a remainder of 33.
Write down 3 as next digit of the result. 
Result so far: 18195.6153
If we take 117 away from 150, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 11:
If we divide 330 by 39, we get 8 and a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 18195.61538
If we take 312 away from 330, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 12:
The number 39 fits into 180 4 times, leaving a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 18195.615384
If we subtract 156 from 180, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 13:
When dividing 240 by 39, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 18195.6153846
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 14:
39 can be fit into 60 1 times, resulting in a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 18195.61538461
Deduct 39 from 60 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

In conclusion, the division gives 18195.61538461 with a balance of 2.1e-08.