We're dividing 203937 by 19 
The aim is to understand the frequency of 19 in 203937.

Going ahead to step 1:
If we divide 2 by 19, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 19

Let's proceed to step 2:
The number 19 fits into 20 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 19 from 20 leaves us with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 19

Going ahead to step 3:
If we divide 13 by 19, we get 0 and a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 13 after subtracting 0 from 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 19

Advancing to step 4:
The number 19 fits into 139 7 times, leaving a remainder of 6.
The next digit of our result is 7. 
Result so far: 107.0
If we take 133 away from 139, we end up with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 19

On to step 5:
19 can be fit into 63 3 times, resulting in a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 1073.0
Subtracting 57 from 63 leaves us with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 19

Let's proceed to step 6:
19 can be fit into 67 3 times, resulting in a remainder of 10.
The next digit of our result is 3. 
Result so far: 10733.0
Subtract 57 from 67 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.

Step 7:
The number 19 fits into 100 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 10733.5
Subtract 95 from 100 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
If we divide 50 by 19, we get 2 and a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 10733.52
Subtracting 38 from 50 leaves us 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.

Let's proceed to step 9:
The number 19 fits into 120 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 10733.526
If we subtract 114 from 120, 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.

Let's proceed to step 10:
19 can be fit into 60 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 10733.5263
Subtracting 57 from 60 leaves us with 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 11:
The number 19 fits into 30 1 times, leaving a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 10733.52631
If we subtract 19 from 30, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 12:
The number 19 fits into 110 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 10733.526315
If we subtract 95 from 110, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 13:
150 divided by 19 is 7 with a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 10733.5263157
Deduct 133 from 150 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 14:
When dividing 170 by 19, we get 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 10733.52631578
Deduct 152 from 170 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 10733.52631578 with a remainder of 1.8e-08.