- на ско́лько (na skólʹko) — erroneous and proscribed, but common; instead has a different meaning, usually "for how many/much"
наско́лько • (naskólʹko)
- how much, how (to what extent)
- as, as far as
Наско́лько мне изве́стно, мы э́того в шко́ле не проходи́ли.- Naskólʹko mne izvéstno, my étovo v škóle ne proxodíli.
- As far as I know, we didn't cover this at school.