Alright, let's work through 71191071 times 71866823 step by step
71191071 × 71866823 = 71866823 × (71191071)
+ 71866823 × 1 producing 71866823
+ 71866823 × 70 yielding 5030677610
+ 71866823 × 000 giving us 0
+ 71866823 × 1000 that results in 71866823000
+ 71866823 × 90000 that equals 6468014070000
+ 71866823 × 100000 giving us 7186682300000
+ 71866823 × 1000000 what gives us 71866823000000
+ 71866823 × 70000000 yielding 5030677610000000

= 5116276098737433
