Hi Everyone,
I am trying to take this layout I made and divide this utility map into smaller sheets for field use.
What's your question? Are you trying to go for match lines or are you wanting to know how to make a data drive page/map series?
I'm thinking map series - https://desktop.arcgis.com/en/arcmap/latest/map/page-layouts/creating-data-driven-pages.htm#
Set up a grid, and it will generate a separate layout for each section of your grid.