30abc : abc = 241
30000 + abc : abc =241
30000 : abc +abc : abc = 241
30000 : abc + 1 = 241
30000 : abc = 240
30000 : 240 = abc
125 = abc
1ab x 126 = 201ab
(100 + ab) x 126 = 20100 + ab
12600 + 126 x ab = 20100 + ab
125 x ab = 7500
ab = 7500 : 125 = 60