How do I Download modem used a floopy ?

I need help like yesterday I accidently uninstalled my modem the Co sent me a adownload driver but I can’t get right path They tell me not to download a to a so here step I took I go to program modem let windows decect modem then it tell insert disk and i do but said can’t find path keep tell me it wrong my modem is a Lechron i been pick pctell i a novice so please give me step for dummies thank you