To expand on what others have said, you can set up a direct monthly withdraw from your checking account if you want to spread your payments over time. The January payment is always a little higher than the other months, because it's when they do all the adjustments from the prior year. From then, you have a set monthly amount that is withdrawn.
You can also pay your dues with a credit card, but when doing so can only pay the full amount due for a contract. (In other words, you can't spread your payments out over time with a credit card.)
We have the automatic withdraw set up from checking. What we'll typically do is allow those to pay for the first 4-6 months or so (to separate these payments from the Christmas bills), and then pay the balance of the dues off one contract per month with our Disney Visa to get the reward dollars. (I'll probably be doing it a little earlier this year, because we just upgraded to a Disney Premier Visa, and want to pay the dues during the 3 months when we earn 5% on Disney purchases instead of 2%.)