We look at the division of 787511 by 19 
The aim is to understand the frequency of 19 in 787511.

Step 1:
If we divide 7 by 19, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 19

Step 2:
The number 19 fits into 78 4 times, leaving a remainder of 2.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 76 from 78 to get 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 19

Moving on to step 3:
27 divided by 19 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 41.0
If we take 19 away from 27, we end up with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 19

Going ahead to step 4:
The number 19 fits into 85 4 times, leaving a remainder of 9.
The next digit of our result is 4. 
Result so far: 414.0
If we take 76 away from 85, we end up with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 19

Step 5:
91 divided by 19 is 4 with a remainder of 15.
Record the quotient 4 as the next digit in the result. 
Result so far: 4144.0
The remainder is 15 after subtracting 76 from 91.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 19

Step 6:
If we divide 151 by 19, we get 7 and a remainder of 18.
The next digit of our result is 7. 
Result so far: 41447.0
Subtract 133 from 151 to get 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 7:
When dividing 180 by 19, we get 9 with a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 41447.9
The remainder is 9 after subtracting 171 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 8:
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: 41447.94
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.

Going ahead to step 9:
The number 19 fits into 140 7 times, leaving a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 41447.947
If we subtract 133 from 140, we 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 10:
70 divided by 19 is 3 with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 41447.9473
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.

Going ahead to step 11:
130 divided by 19 is 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 41447.94736
If we take 114 away from 130, we end up 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 12:
19 goes into 160 8 times with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 41447.947368
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.

Moving on to step 13:
19 can be fit into 80 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 41447.9473684
Subtract 76 from 80 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.

Let's proceed to step 14:
40 divided by 19 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 41447.94736842
Deduct 38 from 40 and we're left 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.

The final result is 41447.94736842 with a remainder of 2e-09.