分屯 is read as ぶんとん (bunton) and means vice-.
ぶんとん
bunton
ぶんとんきち
sub base
ぶんとんち
vice-camp
ぶんぴ
secretion
ぶんり
separation
ぶんせき
analysis
ぶんれつ
split
ぶんき
divergence
ぶんじょう
selling (real-estate) lots
ぶんきてん
junction
ぶんぱ
faction
ぶんすいれい
watershed
ぶんふそうおう
beyond one's means or position