Complex sentence: Seeking to abolish fedualism in Japan, the new government replacing Tokugawa shogunate abolished hundreads of feudal clans or Hans and established new modern local government scheme called prefectures, which is in effect still today.
Split into simpler sentences: Seeking to abolish feudalism in Japan, the new government, which replaced the Tokugawa shogunate, abolished hundreads of feudal clans or Hans. In their place, it established a new local government scheme nased on geographically-defined prefectures, which is in effect still today.