You have lost 5 cards.
In a normal deck of cards, there are 52 cards. If you take those 5 cards away, you have 47 cards.
If you are playing with 3 other people (meaning 4 people total), each person gets 11 cards (totaling 44 cards) and leaving 3 cards left over.
If you are playing with 2 other people (3 people total), each person gets 15 cards (totaling 45 cards) and leaving 2 cards left over.
If you are playing with 4 other people (5 people total), each person gets 9 cards (totaling 45 cards) and leaving 2 cards left over.
Thus meaning, you have lost 5 cards. I hope this helps!