Let's divide 715021 by 19
The aim is to understand the frequency of 19 in 715021.

Advancing to step 1:
19 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 19

Step 2:
When dividing 71 by 19, we get 3 with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 57 from 71 leaves us with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 19

Let's proceed to step 3:
If we divide 145 by 19, we get 7 and a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 37.0
Subtracting 133 from 145 leaves us with 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 19

On to step 4:
The number 19 fits into 120 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 376.0
Subtracting 114 from 120 leaves us with 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 19

Going ahead to step 5:
If we divide 62 by 19, we get 3 and a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 3763.0
Deduct 57 from 62 and we're left with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 19

On to step 6:
19 can be fit into 51 2 times, resulting in a remainder of 13.
Write down 2 as next digit of the result. 
Result so far: 37632.0
If we take 38 away from 51, 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.

Advancing to step 7:
If we divide 130 by 19, we get 6 and a remainder of 16.
The next digit of our result is 6. 
Result so far: 37632.6
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.

Advancing to step 8:
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: 37632.68
If we subtract 152 from 160, we 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.

On to step 9:
When dividing 80 by 19, we get 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 37632.684
If we subtract 76 from 80, we 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 10:
If we divide 40 by 19, we get 2 and a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 37632.6842
Subtract 38 from 40 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 11:
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: 37632.68421
Subtracting 19 from 20 leaves us 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 12:
The number 19 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 37632.68421
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
100 divided by 19 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 37632.6842105
Deduct 95 from 100 and we're left 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 14:
19 can be fit into 50 2 times, resulting in a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 37632.68421052
If we take 38 away from 50, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 37632.68421052 with a remainder of 1.2e-08.