We look at the division of 30453591 by 619 
The aim is to understand the frequency of 619 in 30453591.

Going ahead to step 1:
619 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 619

Going ahead to step 2:
The number 619 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Bring next digit (4) of the dividend behind the 30 and repeat the process: 304 / 619

Advancing to step 3:
When dividing 304 by 619, we get 0 with a remainder of 304.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 304 leaves us with 304.
Bring next digit (5) of the dividend behind the 304 and repeat the process: 3045 / 619

Advancing to step 4:
The number 619 fits into 3045 4 times, leaving a remainder of 569.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 2476 from 3045 and we're left with 569.
Append the next digit (3) from the dividend to 569 and continue with: 5693 / 619

Going ahead to step 5:
619 can be fit into 5693 9 times, resulting in a remainder of 122.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
If we subtract 5571 from 5693, we get 122.
Include the next digit (5) from the dividend after 122, then repeat: 1225 / 619

Going ahead to step 6:
1225 divided by 619 is 1 with a remainder of 606.
Use 1 as the next digit of our solution. 
Result so far: 491.0
The remainder is 606 after subtracting 619 from 1225.
Take the next digit (9) from the dividend and append it to 606, then repeat: 6069 / 619

Going ahead to step 7:
619 can be fit into 6069 9 times, resulting in a remainder of 498.
The next digit of our result is 9. 
Result so far: 4919.0
The remainder is 498 after subtracting 5571 from 6069.
Bring next digit (1) of the dividend behind the 498 and repeat the process: 4981 / 619

Going ahead to step 8:
The number 619 fits into 4981 8 times, leaving a remainder of 29.
The number 8 becomes the next digit in our result. 
Result so far: 49198.0
If we take 4952 away from 4981, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 9:
619 goes into 290 0 times with a remainder of 290.
Put 0 as the next digit of the answer. 
Result so far: 49198.0
If we take 0 away from 290, we end up with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Step 10:
619 can be fit into 2900 4 times, resulting in a remainder of 424.
The number 4 becomes the next digit in our result. 
Result so far: 49198.04
Deduct 2476 from 2900 and we're left with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Step 11:
When dividing 4240 by 619, we get 6 with a remainder of 526.
Use 6 as the next digit of our solution. 
Result so far: 49198.046
Subtracting 3714 from 4240 leaves us with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

Advancing to step 12:
619 can be fit into 5260 8 times, resulting in a remainder of 308.
The number 8 becomes the next digit in our result. 
Result so far: 49198.0468
If we take 4952 away from 5260, we end up with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

On to step 13:
619 goes into 3080 4 times with a remainder of 604.
The next digit of our result is 4. 
Result so far: 49198.04684
Subtracting 2476 from 3080 leaves us with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Step 14:
619 can be fit into 6040 9 times, resulting in a remainder of 469.
Put 9 as the next digit of the answer. 
Result so far: 49198.046849
The remainder is 469 after subtracting 5571 from 6040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Step 15:
4690 divided by 619 is 7 with a remainder of 357.
The number 7 becomes the next digit in our result. 
Result so far: 49198.0468497
If we subtract 4333 from 4690, we get 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Let's proceed to step 16:
3570 divided by 619 is 5 with a remainder of 475.
The number 5 becomes the next digit in our result. 
Result so far: 49198.04684975
If we subtract 3095 from 3570, we get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

The final result is 49198.04684975 with a remainder of 4.75e-07.