Algeria dwarfs Russia: about 2,322,788 km² km² against 16,879,701 km² km². At true size Algeria is about 7.3× larger — the whole of Russia fits into Algeria roughly 7 times.
Algeria sits in Africa, Russia in Europe. On the old Mercator map the latitude gap distorted how large each felt beside the other; at true size the answer is simply 7.3×.
The old map muddied it further: Mercator inflates Algeria about 1.3× and Russia about 6.1×, so on a Mercator-style map this pair appears 34.4× apart instead of the true 7.3×.
Algeria fits 7× into Russia.