We look at the division of 489550 by 19 
The aim is to understand the frequency of 19 in 489550.

Going ahead to step 1:
The number 19 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 19

Going ahead to step 2:
If we divide 48 by 19, we get 2 and a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 38 from 48 to get 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 19

On to step 3:
The number 19 fits into 109 5 times, leaving a remainder of 14.
The next digit of our result is 5. 
Result so far: 25.0
If we subtract 95 from 109, we get 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 19

On to step 4:
The number 19 fits into 145 7 times, leaving a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 257.0
The remainder is 12 after subtracting 133 from 145.
Fetch the next digit (5) from the dividend, attach it to 12 and continue: 125 / 19

Step 5:
If we divide 125 by 19, we get 6 and a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 2576.0
Subtract 114 from 125 to get 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 19

Advancing to step 6:
If we divide 110 by 19, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 25765.0
Subtracting 95 from 110 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 7:
If we divide 150 by 19, we get 7 and a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 25765.7
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.

On to step 8:
19 goes into 170 8 times with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 25765.78
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.

Going ahead to step 9:
19 goes into 180 9 times with a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 25765.789
If we subtract 171 from 180, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 10:
19 goes into 90 4 times with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 25765.7894
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.

Step 11:
19 can be fit into 140 7 times, resulting in a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 25765.78947
Subtract 133 from 140 to 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.

Going ahead to step 12:
The number 19 fits into 70 3 times, leaving a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 25765.789473
If we subtract 57 from 70, we 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.

Let's proceed to step 13:
The number 19 fits into 130 6 times, leaving a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 25765.7894736
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.

Going ahead to step 14:
The number 19 fits into 160 8 times, leaving a remainder of 8.
The next digit of our result is 8. 
Result so far: 25765.78947368
If we subtract 152 from 160, 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.

The final outcome is 25765.78947368, with a leftover of 8e-09.