388286 ÷ 14 
The aim is to understand the frequency of 14 in 388286.

Step 1:
When dividing 3 by 14, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 14

Moving on to step 2:
14 goes into 38 2 times with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 28 from 38 and we're left with 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 14

Advancing to step 3:
When dividing 108 by 14, we get 7 with a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtracting 98 from 108 leaves us with 10.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 14

Moving on to step 4:
If we divide 102 by 14, we get 7 and a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 277.0
Deduct 98 from 102 and we're left with 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 14

On to step 5:
14 goes into 48 3 times with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 2773.0
Subtracting 42 from 48 leaves us with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 14

Let's proceed to step 6:
14 can be fit into 66 4 times, resulting in a remainder of 10.
The next digit of our result is 4. 
Result so far: 27734.0
Subtract 56 from 66 to get 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.
The number 7 becomes the next digit in our result. 
Result so far: 27734.7
If we take 98 away from 100, 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.

Step 8:
14 goes into 20 1 times with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 27734.71
If we subtract 14 from 20, we get 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:
If we divide 60 by 14, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 27734.714
Deduct 56 from 60 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 10:
When dividing 40 by 14, we get 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 27734.7142
If we subtract 28 from 40, we 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:
When dividing 120 by 14, we get 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 27734.71428
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
The number 14 fits into 80 5 times, leaving a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 27734.714285
If we subtract 70 from 80, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
14 can be fit into 100 7 times, resulting in a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 27734.7142857
The remainder is 2 after subtracting 98 from 100.
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:
If we divide 20 by 14, we get 1 and a remainder of 6.
The next digit of our result is 1. 
Result so far: 27734.71428571
If we subtract 14 from 20, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 27734.71428571, with a leftover of 6e-09.