On 100 thousand rubles, you can easily travel two months, not only in Southeast Asia, but also in Europe! In Asia, the average budget would be much less with cheap hotels in 3-15 dollars per night, food for 1-3 dollar and moving across the country (as Kambodzhu) the bus 6 dollars. On the flight back from Russia and my budget was only 120 thousand for 5 months 7 of independent travel.