You would first put the 2 over the 4, as 2 times 2 is 4. Bring the 9 down. 2 goes into 9 about 4 times, but it has the remainder of 1. You bring the other 9 down, and now it says 19. 2 x 9 equals 18, so you put the 9 on top and there you have 249 with the remainder of 1.
So, when dividing by two, any odd number you're given will not divide wholly and will always have a remainder of one. When you say to show steps, I assume that you mean to show the long division process of the problem, which I have attached to my answer.
The final answer is 249 with a remainder of one. If you need that as a decimal, it'll be 249.5.
Hope this helps you out! Feel free to ask any additional questions if you need further clarification.