go about it
Pas que j’aie la moindre idée de comment m’y prendre.
Not that I have the slightest idea how to go about it.
Si on recommence, dit Kat, il faudra s’y prendre mieux.
“If we start over,” Kat said, “we’ll have to do it better.”
Mais comment s’y prendre quand on est dans l'eau ?
But how do you do it when you're in the water?
— Santa Claus Is a Stinker (1982)