Alright, let's work through 71856716 times 49077891 step by step
71856716 × 49077891 = 49077891 × (71856716)
+ 49077891 × 6 that results in 294467346
+ 49077891 × 10 which equals 490778910
+ 49077891 × 700 that results in 34354523700
+ 49077891 × 6000 resulting in 294467346000
+ 49077891 × 50000 what gives us 2453894550000
+ 49077891 × 800000 yielding 39262312800000
+ 49077891 × 1000000 what gives us 49077891000000
+ 49077891 × 70000000 resulting in 3435452370000000

= 3526576075465956
