0 used to show you are annoyed when someone has done something you are unhappy about or has failed to help you in some way: --
Thanks a lot for supporting me. (= You did not support me.)
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.