The Roman numeral "DCCLXXXII" represents the number 782. In this numeral, "D" stands for 500, "CC" represents 200, "L" is 50, "XXX" equals 30, and "II" adds 2. When combined, these values total 782. Roman numerals are a numeral system originating from ancient Rome. They use combinations of letters from the Latin alphabet, including I, V, X, L, C, D, and M, to signify values. This system is still used today in various contexts, such as clock faces, book chapters, and movie sequels.