If you’re lucky, you’ll have a toaster which has a removable crumb tray. That way, each time you finish your toast, you can just pull out the tray and empty the crumbs into the bin with little hassle. If not, the only way to remove such bits is to tip the toaster, when completely cool, over the bin and shake them out. This needs to be done regularly to ensure you don’t have a mass build up of crumbs which you then toast each time you set the toaster cycle. Over time this is a potential fire hazard. It also distorts the quality taste of the bread you are toasting that very day.