If you are reading this article, you should know how to create a timeframe and book and dispatch jobs.
If you wonder how many runs and how long each run will take before hiring any Runners, here is a good tip for you to follow.
When creating the timeframe, click the "Skip and hire later" button on the last step.
Follow this article to upload jobs and run grouping.
Once done, you can review the number of runs needed and view the details of the runs.