We're dividing 786902 by 19 
The aim is to understand the frequency of 19 in 786902.

Going ahead to step 1:
If we divide 7 by 19, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
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

On to step 2:
78 divided by 19 is 4 with 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 (6) from the dividend, add it to 2, then carry on: 26 / 19

Step 3:
19 can be fit into 26 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
If we take 19 away from 26, we end up with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 19

Advancing to step 4:
If we divide 79 by 19, we get 4 and a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 414.0
If we take 76 away from 79, we end up with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 19

Going ahead to step 5:
If we divide 30 by 19, we get 1 and a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 4141.0
Subtract 19 from 30 to get 11.
Append the next digit (2) from the dividend to 11 and continue with: 112 / 19

Advancing to step 6:
19 can be fit into 112 5 times, resulting in a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 41415.0
Subtract 95 from 112 to 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.

Moving on to step 7:
If we divide 170 by 19, we get 8 and a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 41415.8
If we subtract 152 from 170, we 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.

Advancing to step 8:
19 can be fit into 180 9 times, resulting in a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 41415.89
Deduct 171 from 180 and we're left 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 9:
If we divide 90 by 19, we get 4 and a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 41415.894
Subtracting 76 from 90 leaves us 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.

Step 10:
When dividing 140 by 19, we get 7 with a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 41415.8947
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 11:
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: 41415.89473
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.

Step 12:
When dividing 130 by 19, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 41415.894736
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.

Moving on to step 13:
If we divide 160 by 19, we get 8 and a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 41415.8947368
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.

Let's proceed to step 14:
19 goes into 80 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 41415.89473684
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.

The final outcome is 41415.89473684, with a leftover of 4e-09.