We're dividing 390618 by 24 
We're looking to find how many times 24 goes into 390618.

Going ahead to step 1:
24 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 24

Moving on to step 2:
If we divide 39 by 24, we get 1 and a remainder of 15.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 24 from 39 leaves us with 15.
Bring next digit (0) of the dividend behind the 15 and repeat the process: 150 / 24

Moving on to step 3:
24 goes into 150 6 times with a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Deduct 144 from 150 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 24

Going ahead to step 4:
If we divide 66 by 24, we get 2 and a remainder of 18.
The next digit of our result is 2. 
Result so far: 162.0
The remainder is 18 after subtracting 48 from 66.
Bring next digit (1) of the dividend behind the 18 and repeat the process: 181 / 24

Advancing to step 5:
The number 24 fits into 181 7 times, leaving a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 1627.0
Deduct 168 from 181 and we're left with 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 24

Step 6:
138 divided by 24 is 5 with a remainder of 18.
Write down 5 as next digit of the result. 
Result so far: 16275.0
Subtracting 120 from 138 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 7:
24 can be fit into 180 7 times, resulting in a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 16275.7
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
If we divide 120 by 24, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 16275.75
Deduct 120 from 120 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 24 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 16275.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
If we divide 0 by 24, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16275.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 16275.75 with a remaining 0.0.