Let's divide 236421 by 14
The aim is to understand the frequency of 14 in 236421.

Step 1:
14 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 14

Going ahead to step 2:
14 goes into 23 1 times with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 14 from 23 leaves us with 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 14

Step 3:
96 divided by 14 is 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 84 from 96 leaves us with 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 14

Going ahead to step 4:
The number 14 fits into 124 8 times, leaving a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 168.0
Subtract 112 from 124 to get 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 14

Advancing to step 5:
The number 14 fits into 122 8 times, leaving a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 1688.0
If we take 112 away from 122, we end up with 10.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 14

Going ahead to step 6:
If we divide 101 by 14, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 16887.0
Subtract 98 from 101 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
If we divide 30 by 14, we get 2 and a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 16887.2
Subtracting 28 from 30 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.

Moving on to step 8:
The number 14 fits into 20 1 times, leaving a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 16887.21
If we take 14 away from 20, we end up 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 9:
When dividing 60 by 14, we get 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 16887.214
The remainder is 4 after subtracting 56 from 60.
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.
Use 2 as the next digit of our solution. 
Result so far: 16887.2142
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.

Going ahead to step 11:
When dividing 120 by 14, we get 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 16887.21428
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:
14 goes into 80 5 times with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 16887.214285
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.

Moving on to step 13:
14 goes into 100 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 16887.2142857
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.

Step 14:
When dividing 20 by 14, we get 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 16887.21428571
The remainder is 6 after subtracting 14 from 20.
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 result is 16887.21428571 with a remainder of 6e-09.