485959 ÷ 30 
The aim is to understand the frequency of 30 in 485959.

On to step 1:
4 divided by 30 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 30

Step 2:
30 goes into 48 1 times with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 30 from 48 and we're left with 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 30

On to step 3:
185 divided by 30 is 6 with a remainder of 5.
The next digit of our result is 6. 
Result so far: 16.0
Subtract 180 from 185 to get 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 30

Advancing to step 4:
If we divide 59 by 30, we get 1 and a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 161.0
Subtracting 30 from 59 leaves us with 29.
Bring next digit (5) of the dividend behind the 29 and repeat the process: 295 / 30

Step 5:
30 can be fit into 295 9 times, resulting in a remainder of 25.
The next digit of our result is 9. 
Result so far: 1619.0
If we take 270 away from 295, we end up with 25.
Take the next digit (9) from the dividend and append it to 25, then repeat: 259 / 30

Going ahead to step 6:
30 goes into 259 8 times with a remainder of 19.
Put 8 as the next digit of the answer. 
Result so far: 16198.0
Subtracting 240 from 259 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
30 can be fit into 190 6 times, resulting in a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 16198.6
If we take 180 away from 190, we end up 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.

Advancing to step 8:
If we divide 100 by 30, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 16198.63
If we subtract 90 from 100, we 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.

Let's proceed to step 9:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 16198.633
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 16198.633 and a remainder of 0.001.