Indonesia dwarfs Russia: about 1,872,242 km² km² against 16,879,701 km² km². At true size Indonesia is about 9× larger — the whole of Russia fits into Indonesia roughly 9 times.
Indonesia sits in Asia, 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 9×.
The old map muddied it further: Mercator inflates Indonesia about 1× and Russia about 6.1×, so on a Mercator-style map this pair appears 54.6× apart instead of the true 9×.
Indonesia fits 9× into Russia.