We look at the division of 987520 by 19 
The aim is to understand the frequency of 19 in 987520.

Moving on to step 1:
If we divide 9 by 19, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 19

On to step 2:
The number 19 fits into 98 5 times, leaving a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 95 from 98 and we're left with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 19

Moving on to step 3:
37 divided by 19 is 1 with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 51.0
If we subtract 19 from 37, we get 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 19

Going ahead to step 4:
19 can be fit into 185 9 times, resulting in a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 519.0
Subtracting 171 from 185 leaves us with 14.
Bring next digit (2) of the dividend behind the 14 and repeat the process: 142 / 19

Going ahead to step 5:
When dividing 142 by 19, we get 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 5197.0
Subtract 133 from 142 to get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 19

On to step 6:
90 divided by 19 is 4 with a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 51974.0
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.

Step 7:
The number 19 fits into 140 7 times, leaving a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 51974.7
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 8:
70 divided by 19 is 3 with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 51974.73
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.

Moving on to step 9:
19 can be fit into 130 6 times, resulting in a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 51974.736
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.

Let's proceed to step 10:
If we divide 160 by 19, we get 8 and a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 51974.7368
Subtracting 152 from 160 leaves us 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.

On to step 11:
80 divided by 19 is 4 with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 51974.73684
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.

Going ahead to step 12:
The number 19 fits into 40 2 times, leaving a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 51974.736842
The remainder is 2 after subtracting 38 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 13:
When dividing 20 by 19, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 51974.7368421
If we take 19 away from 20, we end up 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.

On to step 14:
When dividing 10 by 19, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 51974.7368421
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.

The quotient of the division is 51974.7368421, and the remainder is 1e-08.