493638 divided by 19 
The aim is to understand the frequency of 19 in 493638.

On to step 1:
If we divide 4 by 19, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 19

Moving on to step 2:
19 goes into 49 2 times with a remainder of 11.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 38 from 49 to get 11.
Grab the next digit (3) from the dividend, add it to 11, then carry on: 113 / 19

Advancing to step 3:
19 can be fit into 113 5 times, resulting in a remainder of 18.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtract 95 from 113 to get 18.
Fetch the next digit (6) from the dividend, attach it to 18 and continue: 186 / 19

Step 4:
The number 19 fits into 186 9 times, leaving a remainder of 15.
Record the quotient 9 as the next digit in the result. 
Result so far: 259.0
Subtracting 171 from 186 leaves us with 15.
Include the next digit (3) from the dividend after 15, then repeat: 153 / 19

Step 5:
The number 19 fits into 153 8 times, leaving a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 2598.0
The remainder is 1 after subtracting 152 from 153.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 19

Step 6:
19 goes into 18 0 times with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 25980.0
If we take 0 away from 18, we end up 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.

Advancing to step 7:
180 divided by 19 is 9 with a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 25980.9
If we take 171 away from 180, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 8:
When dividing 90 by 19, we get 4 with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 25980.94
If we take 76 away from 90, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 9:
When dividing 140 by 19, we get 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 25980.947
If we subtract 133 from 140, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 10:
If we divide 70 by 19, we get 3 and a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 25980.9473
Subtract 57 from 70 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 11:
When dividing 130 by 19, we get 6 with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 25980.94736
If we subtract 114 from 130, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
The number 19 fits into 160 8 times, leaving a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 25980.947368
Subtract 152 from 160 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.

Moving on to step 13:
19 can be fit into 80 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 25980.9473684
Deduct 76 from 80 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.

Step 14:
19 can be fit into 40 2 times, resulting in a remainder of 2.
The next digit of our result is 2. 
Result so far: 25980.94736842
The remainder is 2 after subtracting 38 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 25980.94736842, with a leftover of 2e-09.