The document provides a 4-step guide to multiplying a binomial and a trinomial. It involves setting up a multiplication box, ordering the terms from highest to lowest exponent, combining like terms, and writing the final simplified expression. Specifically, it works through multiplying (26x^3 + 24x + 3) and (31x + 2), resulting in the final expression of 806x^3 + 796x^2 + 141x + 6.