494603 divided by 30 
The aim is to understand the frequency of 30 in 494603.

Let's proceed to step 1:
When dividing 4 by 30, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 30

Step 2:
49 divided by 30 is 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 19 after subtracting 30 from 49.
Fetch the next digit (4) from the dividend, attach it to 19 and continue: 194 / 30

Going ahead to step 3:
194 divided by 30 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 16.0
Deduct 180 from 194 and we're left with 14.
Fetch the next digit (6) from the dividend, attach it to 14 and continue: 146 / 30

Going ahead to step 4:
146 divided by 30 is 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 164.0
Deduct 120 from 146 and we're left with 26.
Append the next digit (0) from the dividend to 26 and continue with: 260 / 30

On to step 5:
30 can be fit into 260 8 times, resulting in a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 1648.0
The remainder is 20 after subtracting 240 from 260.
Bring next digit (3) of the dividend behind the 20 and repeat the process: 203 / 30

Step 6:
30 can be fit into 203 6 times, resulting in a remainder of 23.
Record the quotient 6 as the next digit in the result. 
Result so far: 16486.0
The remainder is 23 after subtracting 180 from 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
30 can be fit into 230 7 times, resulting in a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 16486.7
The remainder is 20 after subtracting 210 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
If we divide 200 by 30, we get 6 and a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 16486.76
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
30 can be fit into 200 6 times, resulting in a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 16486.766
If we take 180 away from 200, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 16486.766, with a leftover of 0.002.