Alright, let's work through 71899699 times 65244488 step by step
71899699 × 65244488 = 65244488 × (71899699)
+ 65244488 × 9 yielding 587200392
+ 65244488 × 90 that equals 5872003920
+ 65244488 × 600 giving us 39146692800
+ 65244488 × 9000 what gives us 587200392000
+ 65244488 × 90000 producing 5872003920000
+ 65244488 × 800000 producing 52195590400000
+ 65244488 × 1000000 that results in 65244488000000
+ 65244488 × 70000000 yielding 4567114160000000

= 4691059048609112
