405215 divided by 14 
The aim is to understand the frequency of 14 in 405215.

Going ahead to step 1:
If we divide 4 by 14, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 14

Advancing to step 2:
The number 14 fits into 40 2 times, leaving a remainder of 12.
The next digit of our result is 2. 
Result so far: 2.0
If we take 28 away from 40, we end up with 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 14

Moving on to step 3:
14 goes into 125 8 times with a remainder of 13.
The next digit of our result is 8. 
Result so far: 28.0
If we subtract 112 from 125, we get 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 14

On to step 4:
If we divide 132 by 14, we get 9 and a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 289.0
Subtract 126 from 132 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 14

Let's proceed to step 5:
61 divided by 14 is 4 with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 2894.0
Subtracting 56 from 61 leaves us with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 14

Moving on to step 6:
When dividing 55 by 14, we get 3 with a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 28943.0
Subtract 42 from 55 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
The number 14 fits into 130 9 times, leaving a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 28943.9
Deduct 126 from 130 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.

Going ahead to step 8:
The number 14 fits into 40 2 times, leaving a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 28943.92
The remainder is 12 after subtracting 28 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
120 divided by 14 is 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 28943.928
Deduct 112 from 120 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.

On to step 10:
14 can be fit into 80 5 times, resulting in a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 28943.9285
Subtracting 70 from 80 leaves us 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.

Advancing to step 11:
14 goes into 100 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 28943.92857
Subtracting 98 from 100 leaves us 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.

Going ahead to step 12:
The number 14 fits into 20 1 times, leaving a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 28943.928571
Deduct 14 from 20 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 13:
60 divided by 14 is 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 28943.9285714
If we subtract 56 from 60, we get 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 14:
14 goes into 40 2 times with a remainder of 12.
The next digit of our result is 2. 
Result so far: 28943.92857142
If we take 28 away from 40, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 28943.92857142 with a balance of 1.2e-08.