(2015*6-32*27:6+72054):(50040-49940)=840
2015 * 6 = 12090
32 * 27 = 864
864 : 6 = 144
12090 - 144 = 11946
11946 + 72054 = 84000
50040 - 49940 = 100
84000 : 100 = 840
( 146520 - 333 * 44 + 92033 * 4 ) : 100000 * 12345 = 61725
333 * 44 = 14652
146520 - 14652 = 131868
92033 * 4 = 368132
131868 + 36832 = 500000
500000 : 100000 = 5
5 * 12345 = 61725