We're dividing 669158 by 30 
The aim is to understand the frequency of 30 in 669158.

Advancing to step 1:
If we divide 6 by 30, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 30

Advancing to step 2:
30 goes into 66 2 times with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 60 from 66 to get 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 30

On to step 3:
30 can be fit into 69 2 times, resulting in a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Subtract 60 from 69 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 30

Step 4:
The number 30 fits into 91 3 times, leaving a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 223.0
Subtract 90 from 91 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 30

Step 5:
30 goes into 15 0 times with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 2230.0
Subtracting 0 from 15 leaves us with 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 30

On to step 6:
30 goes into 158 5 times with a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 22305.0
Deduct 150 from 158 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
30 can be fit into 80 2 times, resulting in a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 22305.2
If we subtract 60 from 80, we 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 8:
The number 30 fits into 200 6 times, leaving a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 22305.26
If we subtract 180 from 200, we 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.

Advancing to step 9:
The number 30 fits into 200 6 times, leaving a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 22305.266
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.

After the division, we end up with 22305.266 and a remainder of 0.002.