How many cycles will cost when using a multiplicaiton?

Thanks you for repling.

I am using cyclone II ,2c35

I thouht multiplication was implemented in time sequence automatically.

So, what's your mean is that it can be done just for one cycle, if the frequence is meet.

The reason why I ask how long it will cost is that I found a long delay when outputing result. I just use basic 50 MHz