We're dividing 335801 by 30 
The aim is to understand the frequency of 30 in 335801.

Let's proceed to step 1:
30 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 30

Going ahead to step 2:
30 goes into 33 1 times with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 30 from 33 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 30

Advancing to step 3:
If we divide 35 by 30, we get 1 and a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 5 after subtracting 30 from 35.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 30

Going ahead to step 4:
30 can be fit into 58 1 times, resulting in a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 111.0
Subtracting 30 from 58 leaves us with 28.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 30

Moving on to step 5:
If we divide 280 by 30, we get 9 and a remainder of 10.
Put 9 as the next digit of the answer. 
Result so far: 1119.0
If we take 270 away from 280, we end up with 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 30

On to step 6:
30 can be fit into 101 3 times, resulting in a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 11193.0
If we subtract 90 from 101, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
If we divide 110 by 30, we get 3 and a remainder of 20.
Write down 3 as next digit of the result. 
Result so far: 11193.3
Subtract 90 from 110 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.

Let's proceed to step 8:
If we divide 200 by 30, we get 6 and a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 11193.36
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.

Going ahead to step 9:
200 divided by 30 is 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 11193.366
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.

After the division, we end up with 11193.366 and a remainder of 0.002.