Briser could not be used to talk about the different steps of a process, but other verbs would, like "fractionner", "diviser". J'ai divisé cette leçon en plusieurs points, pour qu'elle soit plus facile à comprendre, par exemple. Cette opération complexe a été fractionnée en plusieurs étapes plus simples. La pâte brisée is a type of pâte, and yes it is difficult to understand because the word "pâte" has different meanings. In a tarte aux pommes, there is the apple part (la garniture) and the base on which the apples are layered, this is the pâte. You can use different type of pâtes, depending on your recipe and your preferences, like pâte feuilletée, la pâte sablée, la pâte brisée. I hope it is clearer, but if not, let me know ! 😊

So. We can use Briser to talk about proccess disected into steps? The "paté" part confused me.