IPA: /haʊˈsoʊˌvɜr/
KK: /haʊˈsoʊvər/
In any way or manner; regardless of how something is done or to what extent.
You can achieve your goals howsoever you choose to pursue them.
Howsoever is formed from "how" (from Old English "hū", meaning in what manner or way) and "soever" (an archaic form of "soever" from Old English "swā" meaning in any way or at all). The word "howsoever" means in whatever manner or way.
Think of 'how' meaning in what manner, and 'soever' meaning in any way — together they help you remember that 'howsoever' refers to any manner or way something can be done.