801788 ÷ 19 
The aim is to understand the frequency of 19 in 801788.

On to step 1:
When dividing 8 by 19, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 19

Moving on to step 2:
80 divided by 19 is 4 with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 76 from 80 and we're left with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 19

Step 3:
The number 19 fits into 41 2 times, leaving a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 42.0
The remainder is 3 after subtracting 38 from 41.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 19

On to step 4:
The number 19 fits into 37 1 times, leaving a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 421.0
If we take 19 away from 37, we end up with 18.
Append the next digit (8) from the dividend to 18 and continue with: 188 / 19

Moving on to step 5:
The number 19 fits into 188 9 times, leaving a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 4219.0
The remainder is 17 after subtracting 171 from 188.
Include the next digit (8) from the dividend after 17, then repeat: 178 / 19

Step 6:
When dividing 178 by 19, we get 9 with a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 42199.0
Subtract 171 from 178 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 7:
If we divide 70 by 19, we get 3 and a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 42199.3
If we subtract 57 from 70, we 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.

Moving on to step 8:
19 can be fit into 130 6 times, resulting in a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 42199.36
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.

Step 9:
19 goes into 160 8 times with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 42199.368
Subtract 152 from 160 to 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.

Going ahead to step 10:
The number 19 fits into 80 4 times, leaving a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 42199.3684
Subtracting 76 from 80 leaves us 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.

Moving on to step 11:
If we divide 40 by 19, we get 2 and a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 42199.36842
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.

Advancing to step 12:
19 can be fit into 20 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 42199.368421
The remainder is 1 after subtracting 19 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 13:
When dividing 10 by 19, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 42199.368421
The remainder is 10 after subtracting 0 from 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 14:
100 divided by 19 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 42199.36842105
The remainder is 5 after subtracting 95 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 42199.36842105 with a remainder of 5e-09.