Alright, let's work through 42347365 times 91904847 step by step
42347365 × 91904847 = 91904847 × (42347365)
+ 91904847 × 5 producing 459524235
+ 91904847 × 60 yielding 5514290820
+ 91904847 × 300 that equals 27571454100
+ 91904847 × 7000 that equals 643333929000
+ 91904847 × 40000 that equals 3676193880000
+ 91904847 × 300000 giving us 27571454100000
+ 91904847 × 2000000 which equals 183809694000000
+ 91904847 × 40000000 yielding 3676193880000000

= 3891928101178155
