Updated: May 4, 2020
This video from the Protein Data Bank shows how soap interacts with the outer membrane of coronaviruses like COVID-19 and destroys them. Remember that soap is made from fat. These fat molecules, shown as small green worm-like structures in the video, are what disrupt the virus outer shell shown in orange. This is because the other virus shell is also largely composed of fat. The scientific term for fat is lipid which is the term used in this video. This disruption also causes the proteins, shown as green and blue projections, to fall off the virus, and the virus ultimately disintegrating.
This is why washing your hands thoroughly with soap and water is the best defense against infection with COVID-19! Lather well and don't forget to wash your thumbs and fingers!
Stay safe and remember that sometimes the simplest solution is the best one!