How do you split one file into many?

I just downloaded a new H-Game on my laptop. (Since the internet with my desktop seems buggy today), But the game is like over 700 MB long. I was going to upload it to MegaLoad, or whatever it's called, but it only allows 500 MB.. I was going to split my .RAR file into several, and put 500 or lower worth into one file, and put the rest in another .RAR in Megaupload. But there's a problem: I don't know how to do that, I can't even find an option for it.

Help?

when you select your files and choose "add yo archive", you can find an option called "split files size" with a list of choices. You can enter the value you want there and the splitting will begin.

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You can use MasterSplitter as well Smile

or you could use a program called hacha its very good