Summarize the following:
Freezing will harden the gum and the affected area. This process will make the gum stiff, brittle and easier to remove. Freezing the entirety of your jeans can improve your chances of removing the gum. When the surrounding area of the gum is stiff and frozen, you'll have an easier time scrapping off the gum. Empty all the pockets. Fold the jeans into a plastic bag. Don't fold the side with the gum with another piece of fabric. Put the bag in the freezer and leave it there for about an hour or longer. Throw the jeans in with your next load of laundry. Only do this if the gum is fully removed. Pieces of gum could stick to other clothes, if you haven't fully removed it.
Understand the freezing process. Put your jeans in the freezer. Wash your jeans as you normally would.