The phrase "into parts" can be replaced in a variety of ways depending on the context. One alternative could be "dividing into pieces," which implies a physical separation or breakdown. Another option is "segmenting," which suggests categorizing or compartmentalizing information. "Breaking down" is a more colloquial phrase that conveys the process of simplifying or dismantling a complex object or concept. "Analyzing" or "dissecting" are synonyms that imply a more intellectual or scientific approach to the matter. The phrase "partitioning" can also be used to describe the separation of larger entities into smaller, more manageable sections.