Let's divide 406722 by 13
The aim is to understand the frequency of 13 in 406722.

Step 1:
The number 13 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 13

Moving on to step 2:
The number 13 fits into 40 3 times, leaving a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 39 from 40, we get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 13

Advancing to step 3:
13 can be fit into 16 1 times, resulting in a remainder of 3.
The next digit of our result is 1. 
Result so far: 31.0
Deduct 13 from 16 and we're left with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 13

Step 4:
13 can be fit into 37 2 times, resulting in a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 312.0
The remainder is 11 after subtracting 26 from 37.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 13

Step 5:
If we divide 112 by 13, we get 8 and a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 3128.0
Subtract 104 from 112 to get 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 13

Going ahead to step 6:
If we divide 82 by 13, we get 6 and a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 31286.0
The remainder is 4 after subtracting 78 from 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
13 can be fit into 40 3 times, resulting in a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 31286.3
If we take 39 away from 40, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 8:
10 divided by 13 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 31286.3
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.

Moving on to step 9:
If we divide 100 by 13, we get 7 and a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 31286.307
Deduct 91 from 100 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
The number 13 fits into 90 6 times, leaving a remainder of 12.
The next digit of our result is 6. 
Result so far: 31286.3076
Subtract 78 from 90 to 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 11:
13 can be fit into 120 9 times, resulting in a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 31286.30769
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.

Moving on to step 12:
13 goes into 30 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 31286.307692
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.

Step 13:
40 divided by 13 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 31286.3076923
Deduct 39 from 40 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 14:
10 divided by 13 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 31286.3076923
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.

The final outcome is 31286.3076923, with a leftover of 1e-08.