Let's divide 143603 by 14
The aim is to understand the frequency of 14 in 143603.

Step 1:
If we divide 1 by 14, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 14

Going ahead to step 2:
14 can be fit into 14 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 14 from 14 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 14

Let's proceed to step 3:
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: 10.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 14

On to step 4:
If we divide 36 by 14, we get 2 and a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 102.0
Subtract 28 from 36 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 14

Moving on to step 5:
14 can be fit into 80 5 times, resulting in a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 1025.0
If we take 70 away from 80, we end up with 10.
Bring next digit (3) of the dividend behind the 10 and repeat the process: 103 / 14

On to step 6:
The number 14 fits into 103 7 times, leaving a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 10257.0
If we take 98 away from 103, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
14 goes into 50 3 times with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 10257.3
If we subtract 42 from 50, we 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 8:
14 can be fit into 80 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 10257.35
Deduct 70 from 80 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.

Advancing to step 9:
When dividing 100 by 14, we get 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 10257.357
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.

Step 10:
If we divide 20 by 14, we get 1 and a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 10257.3571
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 11:
When dividing 60 by 14, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 10257.35714
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.

Step 12:
40 divided by 14 is 2 with a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 10257.357142
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.

Moving on to step 13:
14 goes into 120 8 times with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 10257.3571428
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.

Going ahead to step 14:
The number 14 fits into 80 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 10257.35714285
The remainder is 10 after subtracting 70 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 10257.35714285 and a remainder of 1e-08.