We look at the division of 30405441 by 605 
The aim is to understand the frequency of 605 in 30405441.

Advancing to step 1:
When dividing 3 by 605, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 605

Step 2:
When dividing 30 by 605, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Fetch the next digit (4) from the dividend, attach it to 30 and continue: 304 / 605

Let's proceed to step 3:
605 goes into 304 0 times with a remainder of 304.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 304 to get 304.
Include the next digit (0) from the dividend after 304, then repeat: 3040 / 605

Going ahead to step 4:
3040 divided by 605 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 3025 from 3040 and we're left with 15.
Bring next digit (5) of the dividend behind the 15 and repeat the process: 155 / 605

Going ahead to step 5:
If we divide 155 by 605, we get 0 and a remainder of 155.
The next digit of our result is 0. 
Result so far: 50.0
If we subtract 0 from 155, we get 155.
Bring next digit (4) of the dividend behind the 155 and repeat the process: 1554 / 605

On to step 6:
The number 605 fits into 1554 2 times, leaving a remainder of 344.
Record the quotient 2 as the next digit in the result. 
Result so far: 502.0
If we subtract 1210 from 1554, we get 344.
Bring next digit (4) of the dividend behind the 344 and repeat the process: 3444 / 605

Moving on to step 7:
When dividing 3444 by 605, we get 5 with a remainder of 419.
Put 5 as the next digit of the answer. 
Result so far: 5025.0
Deduct 3025 from 3444 and we're left with 419.
Fetch the next digit (1) from the dividend, attach it to 419 and continue: 4191 / 605

Moving on to step 8:
The number 605 fits into 4191 6 times, leaving a remainder of 561.
Write down 6 as next digit of the result. 
Result so far: 50256.0
The remainder is 561 after subtracting 3630 from 4191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5610, and continue the process.

Going ahead to step 9:
605 goes into 5610 9 times with a remainder of 165.
The number 9 becomes the next digit in our result. 
Result so far: 50256.9
If we take 5445 away from 5610, we end up with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Step 10:
1650 divided by 605 is 2 with a remainder of 440.
The number 2 becomes the next digit in our result. 
Result so far: 50256.92
Subtracting 1210 from 1650 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 11:
If we divide 4400 by 605, we get 7 and a remainder of 165.
Record the quotient 7 as the next digit in the result. 
Result so far: 50256.927
Subtract 4235 from 4400 to get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Let's proceed to step 12:
605 goes into 1650 2 times with a remainder of 440.
Record the quotient 2 as the next digit in the result. 
Result so far: 50256.9272
Deduct 1210 from 1650 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 13:
605 can be fit into 4400 7 times, resulting in a remainder of 165.
Write down 7 as next digit of the result. 
Result so far: 50256.92727
Deduct 4235 from 4400 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Let's proceed to step 14:
If we divide 1650 by 605, we get 2 and a remainder of 440.
Put 2 as the next digit of the answer. 
Result so far: 50256.927272
Deduct 1210 from 1650 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 15:
605 can be fit into 4400 7 times, resulting in a remainder of 165.
Put 7 as the next digit of the answer. 
Result so far: 50256.9272727
The remainder is 165 after subtracting 4235 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Advancing to step 16:
605 can be fit into 1650 2 times, resulting in a remainder of 440.
The next digit of our result is 2. 
Result so far: 50256.92727272
If we subtract 1210 from 1650, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

The final result is 50256.92727272 with a remainder of 4.4e-07.