The main UK lotto draw takes place on Wednesday and Saturday nights. Numbered balls are drawn from a machine to create the winning numbers from that draw. Six main numbers are drawn and one bonus ball number. The winner of the main jackpot only needs to have the six main numbers. If they have five, they can still win a fairly high prize if they have selected the bonus ball number instead of one of the main draw numbers.
The best place to check for the winning numbers is on the National Lottery website. This will publish the results within a couple of hours of the draw taking place. The draw used to be televised on one of the main TV channels and while it can still be seen on TV, it now broadcasts on the National Lottery's own YouTube channel. Players can subscribe to the channel to get notifications on draws.