We're dividing 336580 by 19 
The aim is to understand the frequency of 19 in 336580.

Step 1:
When dividing 3 by 19, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 19

Moving on to step 2:
19 can be fit into 33 1 times, resulting in a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 19 from 33, we get 14.
Take the next digit (6) from the dividend and append it to 14, then repeat: 146 / 19

Let's proceed to step 3:
When dividing 146 by 19, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Subtracting 133 from 146 leaves us with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 19

Step 4:
The number 19 fits into 135 7 times, leaving a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 177.0
If we subtract 133 from 135, we get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 19

Step 5:
19 can be fit into 28 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 1771.0
If we take 19 away from 28, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 19

Moving on to step 6:
19 can be fit into 90 4 times, resulting in a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 17714.0
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.

On to step 7:
19 can be fit into 140 7 times, resulting in a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 17714.7
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.

Advancing to step 8:
19 goes into 70 3 times with a remainder of 13.
The next digit of our result is 3. 
Result so far: 17714.73
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.

Let's proceed to step 9:
130 divided by 19 is 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 17714.736
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.

Let's proceed to step 10:
19 can be fit into 160 8 times, resulting in a remainder of 8.
The next digit of our result is 8. 
Result so far: 17714.7368
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.

Moving on to step 11:
The number 19 fits into 80 4 times, leaving a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 17714.73684
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.

On to step 12:
40 divided by 19 is 2 with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 17714.736842
If we take 38 away from 40, we end up 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.

On to step 13:
19 goes into 20 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 17714.7368421
Subtracting 19 from 20 leaves us 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.

Going ahead to step 14:
When dividing 10 by 19, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 17714.7368421
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 17714.7368421 with a remaining 1e-08.