Marginals (also known as "straight-tabs", "frequencies", "freqs", "top-line", "hole-counts") are simple frequency distributions of your data. They are generally unlabelled, except for references to data locations (cards and columns). Typically, they are a preliminary step used to verify quotas, check data for errors, or provide counts and percentages for the total sample.
If your budget is tight, you may choose to stop here, and use the marginals for further analysis.