We divide 665339 by 30
The aim is to understand the frequency of 30 in 665339.

Advancing to step 1:
30 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 30

Step 2:
30 can be fit into 66 2 times, resulting in a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 60 from 66, we get 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 30

Advancing to step 3:
30 can be fit into 65 2 times, resulting in a remainder of 5.
The next digit of our result is 2. 
Result so far: 22.0
If we take 60 away from 65, we end up with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 30

Advancing to step 4:
The number 30 fits into 53 1 times, leaving a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 221.0
Deduct 30 from 53 and we're left with 23.
Include the next digit (3) from the dividend after 23, then repeat: 233 / 30

On to step 5:
When dividing 233 by 30, we get 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 2217.0
Subtract 210 from 233 to get 23.
Take the next digit (9) from the dividend and append it to 23, then repeat: 239 / 30

Step 6:
The number 30 fits into 239 7 times, leaving a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 22177.0
The remainder is 29 after subtracting 210 from 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 7:
If we divide 290 by 30, we get 9 and a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 22177.9
Deduct 270 from 290 and we're left 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.

Step 8:
When dividing 200 by 30, we get 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 22177.96
Subtract 180 from 200 to get 20.
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 9:
When dividing 200 by 30, we get 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 22177.966
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.

After the division, we end up with 22177.966 and a remainder of 0.002.