Quote Originally Posted by rev81
How can there be 46 remaining cards when I have to consider the cards that have already been dealt to other players and each of the cards the dealer sloughs before the flop, turn and river.
Yes, there are 46 unseen cards, but not 46 playable cards left.
It's not easy to explain, but that's just the way it is.

Think about it. Let's say you want to know the odds of hitting a 5 on the river to complete your gutshot straight draw.

There are 52 possible cards that can come up MINUS the 6 that you have already seen (2 hole cards + 4 community cards). Those 6 cards cannot come up on the river, so you have 46 possible cards that can come up.

Four of those are fives, so you have a 4/46 chance of hitting that 5 on the river.

Again, it can be a difficult concept to grasp, but that's just how probability works.