Alright, let's work through 71315735 times 9654618 step by step
71315735 × 9654618 = 9654618 × (71315735)
+ 9654618 × 5 that equals 48273090
+ 9654618 × 30 that results in 289638540
+ 9654618 × 700 giving us 6758232600
+ 9654618 × 5000 yielding 48273090000
+ 9654618 × 10000 what gives us 96546180000
+ 9654618 × 300000 which equals 2896385400000
+ 9654618 × 1000000 producing 9654618000000
+ 9654618 × 70000000 yielding 675823260000000

= 688526178814230
