We look at the division of 386575 by 30 
Our goal is to divide 386575 by 30.

Going ahead to step 1:
The number 30 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 30

On to step 2:
38 divided by 30 is 1 with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 30 from 38 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 30

Moving on to step 3:
The number 30 fits into 86 2 times, leaving a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 60 from 86 to get 26.
Append the next digit (5) from the dividend to 26 and continue with: 265 / 30

Step 4:
265 divided by 30 is 8 with a remainder of 25.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
The remainder is 25 after subtracting 240 from 265.
Include the next digit (7) from the dividend after 25, then repeat: 257 / 30

Step 5:
The number 30 fits into 257 8 times, leaving a remainder of 17.
The number 8 becomes the next digit in our result. 
Result so far: 1288.0
If we subtract 240 from 257, we get 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 30

Advancing to step 6:
175 divided by 30 is 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 12885.0
Deduct 150 from 175 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 7:
30 goes into 250 8 times with a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 12885.8
If we subtract 240 from 250, 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 8:
The number 30 fits into 100 3 times, leaving a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 12885.83
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.

Advancing to step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 12885.833
If we take 90 away from 100, 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.

The final outcome is 12885.833, with a leftover of 0.001.