We divide 729429 by 13
The aim is to understand the frequency of 13 in 729429.

Moving on to step 1:
The number 13 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 13

Step 2:
When dividing 72 by 13, we get 5 with a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 7 after subtracting 65 from 72.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 13

On to step 3:
The number 13 fits into 79 6 times, leaving a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 56.0
The remainder is 1 after subtracting 78 from 79.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 13

Going ahead to step 4:
14 divided by 13 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 561.0
Subtracting 13 from 14 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 13

Advancing to step 5:
13 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 5610.0
The remainder is 12 after subtracting 0 from 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 13

On to step 6:
13 can be fit into 129 9 times, resulting in a remainder of 12.
Use 9 as the next digit of our solution. 
Result so far: 56109.0
If we subtract 117 from 129, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
When dividing 120 by 13, we get 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 56109.9
Deduct 117 from 120 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
When dividing 30 by 13, we get 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 56109.92
Deduct 26 from 30 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
The number 13 fits into 40 3 times, leaving a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 56109.923
Subtract 39 from 40 to get 1.
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 10:
When dividing 10 by 13, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 56109.923
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.

On to step 11:
100 divided by 13 is 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 56109.92307
If we subtract 91 from 100, 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.

Let's proceed to step 12:
The number 13 fits into 90 6 times, leaving a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 56109.923076
The remainder is 12 after subtracting 78 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 13:
13 goes into 120 9 times with a remainder of 3.
The next digit of our result is 9. 
Result so far: 56109.9230769
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 14:
13 can be fit into 30 2 times, resulting in a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 56109.92307692
The remainder is 4 after subtracting 26 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 56109.92307692 and a remainder of 4e-09.