The number 42 also turns up in a whole string of curious coincidences whose significance is probably not worth the effort to figure out. For example:

Ancient Tibet had 42 rulers. Nyatri Tsenpo, who reigned around 127 B.C., was the first. And Langdarma, who ruled from 836 to 842 A.D. (i.e., the 42nd year of the ninth century), was the last. The Gutenberg Bible, the first book printed in Europe, has 42 lines of text per column and is also called the “Forty-Two-Line Bible.”An infinite set of solutions is also known for n = 2. It was discovered in 1908 by mathematician A. S. Werebrusov. For any integer p: I, YHWH, called you in righteousness, | And I lay hold on your hand, and keep you, | And I give you for a covenant of a people, | And a light of nations.

Long multiplication means you're doing multiplication by hand. The traditional method, or Standard Algorithm, involves multiplying numbers and lining up results according to place value. These are the steps to do long multiplication by hand:I the LORD have called you in righteousness, and will hold your hand, and will keep you, and give you for a covenant of the people, for a light of the Gentiles;