We're dividing 405321 by 14 
The aim is to understand the frequency of 14 in 405321.

On to step 1:
4 divided by 14 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 14

Step 2:
The number 14 fits into 40 2 times, leaving a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 28 from 40, we get 12.
Append the next digit (5) from the dividend to 12 and continue with: 125 / 14

Going ahead to step 3:
When dividing 125 by 14, we get 8 with a remainder of 13.
Write down 8 as next digit of the result. 
Result so far: 28.0
Deduct 112 from 125 and we're left with 13.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 14

Let's proceed to step 4:
14 can be fit into 133 9 times, resulting in a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 289.0
The remainder is 7 after subtracting 126 from 133.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 14

Going ahead to step 5:
If we divide 72 by 14, we get 5 and a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 2895.0
Subtracting 70 from 72 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 14

Let's proceed to step 6:
The number 14 fits into 21 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 28951.0
The remainder is 7 after subtracting 14 from 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
14 goes into 70 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 28951.5
Subtracting 70 from 70 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
The number 14 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 28951.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
When dividing 0 by 14, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 28951.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 28951.5 and a remainder of 0.0.