263819 divided by 19 
The aim is to understand the frequency of 19 in 263819.

Advancing to step 1:
The number 19 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 19

Going ahead to step 2:
If we divide 26 by 19, we get 1 and a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 19 from 26 to get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 19

Going ahead to step 3:
The number 19 fits into 73 3 times, leaving a remainder of 16.
The next digit of our result is 3. 
Result so far: 13.0
If we take 57 away from 73, we end up with 16.
Grab the next digit (8) from the dividend, add it to 16, then carry on: 168 / 19

Advancing to step 4:
When dividing 168 by 19, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 138.0
The remainder is 16 after subtracting 152 from 168.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 19

Step 5:
When dividing 161 by 19, we get 8 with a remainder of 9.
The next digit of our result is 8. 
Result so far: 1388.0
If we subtract 152 from 161, we get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 19

Moving on to step 6:
The number 19 fits into 99 5 times, leaving a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 13885.0
Subtract 95 from 99 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.

Going ahead to step 7:
40 divided by 19 is 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 13885.2
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.

Advancing to step 8:
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: 13885.21
Deduct 19 from 20 and we're left 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.

Let's proceed to step 9:
19 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 13885.21
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.

Let's proceed to step 10:
19 can be fit into 100 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 13885.2105
If we take 95 away from 100, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 11:
19 goes into 50 2 times with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 13885.21052
The remainder is 12 after subtracting 38 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 12:
19 can be fit into 120 6 times, resulting in a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 13885.210526
Subtracting 114 from 120 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
The number 19 fits into 60 3 times, leaving a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 13885.2105263
Subtract 57 from 60 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 14:
When dividing 30 by 19, we get 1 with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 13885.21052631
The remainder is 11 after subtracting 19 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final outcome is 13885.21052631, with a leftover of 1.1e-08.