455429 ÷ 19 
The aim is to understand the frequency of 19 in 455429.

Let's proceed to step 1:
19 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 19

Let's proceed to step 2:
If we divide 45 by 19, we get 2 and a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 38 from 45 leaves us with 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 19

On to step 3:
19 can be fit into 75 3 times, resulting in a remainder of 18.
The next digit of our result is 3. 
Result so far: 23.0
Subtracting 57 from 75 leaves us with 18.
Grab the next digit (4) from the dividend, add it to 18, then carry on: 184 / 19

Advancing to step 4:
19 can be fit into 184 9 times, resulting in a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 239.0
The remainder is 13 after subtracting 171 from 184.
Fetch the next digit (2) from the dividend, attach it to 13 and continue: 132 / 19

Moving on to step 5:
If we divide 132 by 19, we get 6 and a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 2396.0
If we subtract 114 from 132, we get 18.
Take the next digit (9) from the dividend and append it to 18, then repeat: 189 / 19

Step 6:
19 can be fit into 189 9 times, resulting in a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 23969.0
If we subtract 171 from 189, we get 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 7:
19 goes into 180 9 times with a remainder of 9.
The next digit of our result is 9. 
Result so far: 23969.9
The remainder is 9 after subtracting 171 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 8:
19 can be fit into 90 4 times, resulting in a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 23969.94
Deduct 76 from 90 and we're left 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:
19 can be fit into 140 7 times, resulting in a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 23969.947
Deduct 133 from 140 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 10:
19 goes into 70 3 times with a remainder of 13.
The next digit of our result is 3. 
Result so far: 23969.9473
Deduct 57 from 70 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 11:
If we divide 130 by 19, we get 6 and a remainder of 16.
The next digit of our result is 6. 
Result so far: 23969.94736
Subtract 114 from 130 to 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 12:
The number 19 fits into 160 8 times, leaving a remainder of 8.
The next digit of our result is 8. 
Result so far: 23969.947368
If we take 152 away from 160, we end up with 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 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: 23969.9473684
Subtract 76 from 80 to 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.

Let's proceed to step 14:
When dividing 40 by 19, we get 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 23969.94736842
Subtract 38 from 40 to 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.

Our division results in 23969.94736842 with a remaining 2e-09.