What's too many calories?

So I worked out for three hours today and burned over 2900 calories including my daily allowance (I have it set on moderate).  I ate breakfast before I went to work out and then ate lunch when I got home.  For dinner we had steaks and I was not really sure how much I ate, but I over estimated and said 8oz.  So now my daily calorie intake is 1800, the highest I have ever had it while being on this weight loss journey.  Am I in big trouble?  Also I am still hungry and would like to eat a small snack?  Help please.

eat a snack, your deficiency is pretty big...

that's right! if you burned over 2900 calories, you need to eat about 2400. go ahead and eat something!

Thanks for the replies and actually as I looked closer I have put myself under light activity (I don't know if this makes any difference) and I burned about 2750.  I just was not sure if this made a difference?