Learning and memory require energy. Establish why you are learning this. In order to create meaningfulness, associations are needed. You remember instantly. Because you've utilized a basic memory rule - associate with the known.
People remember the wild, weird, outrageous, ridiculous.
Repetition and practice drill information into long-term recall. Overlearning contributes to automatization. That's exactly how we learn the multiplication tables as well as other information. Along with overlearning goes recitation. Hearing oneself aloud rather than the little voice in one's mind improves memory and recall.