Knitting help

I am knitting dog sweater, it says k7, cast on 5 sts, k65 how i do in the middle of needle?


Do you have the pattern link available?

It’s probably where a leg goes. Knit seven, take the working yarn and cast on with it (backward loop will work and so will the kind of half-hitch cast-on I use,) then go on with the rest of the row.