389378 divided by 19 
The aim is to understand the frequency of 19 in 389378.

Moving on to step 1:
3 divided by 19 is 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.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 19

On to step 2:
19 can be fit into 38 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 38 from 38 and we're left with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 19

Moving on to step 3:
When dividing 9 by 19, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 19

Going ahead to step 4:
93 divided by 19 is 4 with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 204.0
If we take 76 away from 93, we end up with 17.
Fetch the next digit (7) from the dividend, attach it to 17 and continue: 177 / 19

Going ahead to step 5:
The number 19 fits into 177 9 times, leaving a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 2049.0
If we subtract 171 from 177, we get 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 19

Advancing to step 6:
When dividing 68 by 19, we get 3 with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 20493.0
Deduct 57 from 68 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
110 divided by 19 is 5 with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 20493.5
If we subtract 95 from 110, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
When dividing 150 by 19, we get 7 with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 20493.57
If we subtract 133 from 150, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 9:
19 can be fit into 170 8 times, resulting in a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 20493.578
Subtracting 152 from 170 leaves us 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.

On to step 10:
When dividing 180 by 19, we get 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 20493.5789
Subtracting 171 from 180 leaves us 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 11:
The number 19 fits into 90 4 times, leaving a remainder of 14.
The next digit of our result is 4. 
Result so far: 20493.57894
Subtract 76 from 90 to get 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 12:
19 can be fit into 140 7 times, resulting in a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 20493.578947
The remainder is 7 after subtracting 133 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 13:
19 can be fit into 70 3 times, resulting in a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 20493.5789473
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.

On to step 14:
If we divide 130 by 19, we get 6 and a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 20493.57894736
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.

In conclusion, the division gives 20493.57894736 with a balance of 1.6e-08.