We're dividing 433985 by 30 
We want to figure out the number of times 433985 can be divided by 30.

Step 1:
If we divide 4 by 30, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 30

On to step 2:
43 divided by 30 is 1 with a remainder of 13.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 30 from 43 and we're left with 13.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 30

Let's proceed to step 3:
133 divided by 30 is 4 with a remainder of 13.
The next digit of our result is 4. 
Result so far: 14.0
If we take 120 away from 133, we end up with 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 30

Let's proceed to step 4:
139 divided by 30 is 4 with a remainder of 19.
The next digit of our result is 4. 
Result so far: 144.0
If we take 120 away from 139, we end up with 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 30

Let's proceed to step 5:
When dividing 198 by 30, we get 6 with a remainder of 18.
The next digit of our result is 6. 
Result so far: 1446.0
If we take 180 away from 198, we end up with 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 30

Advancing to step 6:
30 goes into 185 6 times with a remainder of 5.
Put 6 as the next digit of the answer. 
Result so far: 14466.0
If we take 180 away from 185, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
When dividing 50 by 30, we get 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 14466.1
Subtracting 30 from 50 leaves us 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:
30 goes into 200 6 times with a remainder of 20.
The next digit of our result is 6. 
Result so far: 14466.16
Deduct 180 from 200 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.

Moving on to step 9:
The number 30 fits into 200 6 times, leaving a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 14466.166
Deduct 180 from 200 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.

After the division, we end up with 14466.166 and a remainder of 0.002.