We look at the division of 357206 by 14 
The aim is to understand the frequency of 14 in 357206.

On to step 1:
The number 14 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 14

Moving on to step 2:
When dividing 35 by 14, we get 2 with a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 28 from 35, we get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 14

Advancing to step 3:
The number 14 fits into 77 5 times, leaving a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Subtract 70 from 77 to get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 14

Let's proceed to step 4:
14 can be fit into 72 5 times, resulting in a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 255.0
Subtracting 70 from 72 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 14

Step 5:
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: 2551.0
Subtracting 14 from 20 leaves us with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 14

Going ahead to step 6:
The number 14 fits into 66 4 times, leaving a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 25514.0
Deduct 56 from 66 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.

Going ahead to step 7:
100 divided by 14 is 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 25514.7
If we subtract 98 from 100, we 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.

On to step 8:
14 can be fit into 20 1 times, resulting in a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 25514.71
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.

On to step 9:
60 divided by 14 is 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 25514.714
If we take 56 away from 60, we end up 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.

Moving on to step 10:
The number 14 fits into 40 2 times, leaving a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 25514.7142
Subtract 28 from 40 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.

Step 11:
120 divided by 14 is 8 with a remainder of 8.
The next digit of our result is 8. 
Result so far: 25514.71428
Subtract 112 from 120 to get 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 12:
The number 14 fits into 80 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 25514.714285
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 13:
14 can be fit into 100 7 times, resulting in a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 25514.7142857
If we subtract 98 from 100, we 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.

Moving on to step 14:
14 can be fit into 20 1 times, resulting in a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 25514.71428571
Subtracting 14 from 20 leaves us 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.

After the division, we end up with 25514.71428571 and a remainder of 6e-09.