Alright, let's work through 40364987 times 97834435 step by step
40364987 × 97834435 = 97834435 × (40364987)
+ 97834435 × 7 that results in 684841045
+ 97834435 × 80 which equals 7826754800
+ 97834435 × 900 giving us 88050991500
+ 97834435 × 4000 that results in 391337740000
+ 97834435 × 60000 yielding 5870066100000
+ 97834435 × 300000 that results in 29350330500000
+ 97834435 × 0000000 that equals 0
+ 97834435 × 40000000 that equals 3913377400000000

= 3949085696927345
