Alright, let's work through 51867741 times 68070032 step by step
51867741 × 68070032 = 68070032 × (51867741)
+ 68070032 × 1 what gives us 68070032
+ 68070032 × 40 producing 2722801280
+ 68070032 × 700 which equals 47649022400
+ 68070032 × 7000 giving us 476490224000
+ 68070032 × 60000 producing 4084201920000
+ 68070032 × 800000 what gives us 54456025600000
+ 68070032 × 1000000 that equals 68070032000000
+ 68070032 × 50000000 yielding 3403501600000000

= 3530638789637712
