451888 divided by 18 
We want to divide 451888 by 18.

Going ahead to step 1:
18 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 18

Advancing to step 2:
18 goes into 45 2 times with a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 36 away from 45, we end up with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 18

Step 3:
18 can be fit into 91 5 times, resulting in a remainder of 1.
The next digit of our result is 5. 
Result so far: 25.0
Subtracting 90 from 91 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 18

Going ahead to step 4:
18 divided by 18 is 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 251.0
The remainder is 0 after subtracting 18 from 18.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 18

Let's proceed to step 5:
18 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 2510.0
Subtract 0 from 8 to get 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 18

Step 6:
If we divide 88 by 18, we get 4 and a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 25104.0
If we take 72 away from 88, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
When dividing 160 by 18, we get 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 25104.8
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 8:
If we divide 160 by 18, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 25104.88
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 25104.88, with a leftover of 0.016.