Macro to enter calculation in cells adjacent to cells with values?

Hi all -

I'm a rookie with macros and could really use some help.

This workbook is constantly exported from our accounting system. I currently have a macro under personal that the accountant can run to delete the unnecessary columns, but I would like to add another automation -

I need to divide each cell in column G by the cell in column E in that same row, then put the answer in column H of that same row. The first entry will always start in row 5, but the last entry is always unknown.

Any help would be great! Thanks!