Let's divide 729666 by 13
The aim is to understand the frequency of 13 in 729666.

Advancing to step 1:
13 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 13

Going ahead to step 2:
13 goes into 72 5 times with a remainder of 7.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 65 from 72, we get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 13

Let's proceed to step 3:
When dividing 79 by 13, we get 6 with a remainder of 1.
The next digit of our result is 6. 
Result so far: 56.0
If we subtract 78 from 79, we get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 13

Advancing to step 4:
When dividing 16 by 13, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 561.0
Subtract 13 from 16 to get 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 13

Moving on to step 5:
13 goes into 36 2 times with a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 5612.0
If we take 26 away from 36, we end up with 10.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 13

Step 6:
The number 13 fits into 106 8 times, leaving a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 56128.0
If we take 104 away from 106, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
If we divide 20 by 13, we get 1 and a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 56128.1
Subtracting 13 from 20 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.

Let's proceed to step 8:
When dividing 70 by 13, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 56128.15
If we subtract 65 from 70, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
If we divide 50 by 13, we get 3 and a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 56128.153
If we subtract 39 from 50, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 10:
110 divided by 13 is 8 with a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 56128.1538
The remainder is 6 after subtracting 104 from 110.
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 11:
The number 13 fits into 60 4 times, leaving a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 56128.15384
Deduct 52 from 60 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
If we divide 80 by 13, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 56128.153846
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 13:
When dividing 20 by 13, we get 1 with a remainder of 7.
The next digit of our result is 1. 
Result so far: 56128.1538461
The remainder is 7 after subtracting 13 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 14:
13 goes into 70 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 56128.15384615
Deduct 65 from 70 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 56128.15384615 and a remainder of 5e-09.