Alright, let's work through 71520848 times 21352988 step by step
71520848 × 21352988 = 21352988 × (71520848)
+ 21352988 × 8 what gives us 170823904
+ 21352988 × 40 resulting in 854119520
+ 21352988 × 800 which equals 17082390400
+ 21352988 × 0000 which equals 0
+ 21352988 × 20000 which equals 427059760000
+ 21352988 × 500000 what gives us 10676494000000
+ 21352988 × 1000000 that results in 21352988000000
+ 21352988 × 70000000 yielding 1494709160000000

= 1527183809093824
