This means to divide. The order of operation is about the order of execution in tableau. The operation such as create different types of graph apply filters such as color size text create calculation fields create the view etc.
After you have done P and E just go from left to right doing any M or D as you find them.
The order of these operations states which operations take precedence are taken care of before which other operations. To eliminate this confusion we have some rules of precedence established at least as far back as the 1500s called the order of operations. E xponents--- 2 or X 2 ---The number 2 is the exponent. Parentheses exponents multiplication or division as found from left to right in the problem and then addition or subtraction as found from left.