Content of numbered sachets?

At the back of building manuals there are content pages of the bricks used in the build.

Is there such a place in the Lego site that details the contents of the various numbers sachets with sets?

Also I notice that some parts are accompanied by a number in a bubble. Can someone tell me the reason please?

I'm new, so please excuse such a basic question.

Ross

LEGO does not provide a list of which pieces are in which bag. The only way to figure it out would be to look at the instructions and when they start a bag, follow the steps until the next bag, writing down the pieces used along the way.

Circled numbers usually mean quantity. Have a picture or example of set instructions with this? I’m used to seeing x3 for having to do something three times, not a circled 3.