458659 divided by 18 
Let's see how many times 18 fits into 458659.

Let's proceed to step 1:
The number 18 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 18

Let's proceed to step 2:
If we divide 45 by 18, we get 2 and a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 36 from 45, we get 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 18

Let's proceed to step 3:
18 goes into 98 5 times with a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtracting 90 from 98 leaves us with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 18

Advancing to step 4:
If we divide 86 by 18, we get 4 and a remainder of 14.
The next digit of our result is 4. 
Result so far: 254.0
The remainder is 14 after subtracting 72 from 86.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 18

Moving on to step 5:
The number 18 fits into 145 8 times, leaving a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 2548.0
Deduct 144 from 145 and we're left with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 18

Moving on to step 6:
19 divided by 18 is 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 25481.0
Subtract 18 from 19 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
18 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 25481.0
Subtract 0 from 10 to 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.

On to step 8:
18 goes into 100 5 times with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 25481.05
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.

Step 9:
100 divided by 18 is 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 25481.055
Subtracting 90 from 100 leaves us 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 25481.055, with a leftover of 0.001.