We look at the division of 854059 by 19 
The aim is to understand the frequency of 19 in 854059.

Step 1:
The number 19 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 19

On to step 2:
If we divide 85 by 19, we get 4 and a remainder of 9.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 76 from 85, we get 9.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 19

Let's proceed to step 3:
When dividing 94 by 19, we get 4 with a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
If we subtract 76 from 94, we get 18.
Take the next digit (0) from the dividend and append it to 18, then repeat: 180 / 19

Advancing to step 4:
19 goes into 180 9 times with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 449.0
If we subtract 171 from 180, we get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 19

Going ahead to step 5:
19 can be fit into 95 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 4495.0
Subtracting 95 from 95 leaves us with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 19

Let's proceed to step 6:
19 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 44950.0
The remainder is 9 after subtracting 0 from 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
90 divided by 19 is 4 with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 44950.4
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.

Let's proceed to step 8:
The number 19 fits into 140 7 times, leaving a remainder of 7.
The next digit of our result is 7. 
Result so far: 44950.47
If we take 133 away from 140, we end up 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.

Moving on to step 9:
19 goes into 70 3 times with a remainder of 13.
The next digit of our result is 3. 
Result so far: 44950.473
If we take 57 away from 70, we end up 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.

Moving on to step 10:
19 can be fit into 130 6 times, resulting in a remainder of 16.
The next digit of our result is 6. 
Result so far: 44950.4736
Subtracting 114 from 130 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
19 goes into 160 8 times with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 44950.47368
Deduct 152 from 160 and we're left 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 12:
When dividing 80 by 19, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 44950.473684
If we subtract 76 from 80, 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.

Going ahead to step 13:
19 can be fit into 40 2 times, resulting in a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 44950.4736842
Subtracting 38 from 40 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.

Moving on to step 14:
When dividing 20 by 19, we get 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 44950.47368421
If we take 19 away from 20, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 44950.47368421, with a leftover of 1e-09.