Alright, let's work through 3677909 times 96887581 step by step
3677909 × 96887581 = 96887581 × (3677909)
+ 96887581 × 9 yielding 871988229
+ 96887581 × 00 what gives us 0
+ 96887581 × 900 yielding 87198822900
+ 96887581 × 7000 that results in 678213067000
+ 96887581 × 70000 which equals 6782130670000
+ 96887581 × 600000 what gives us 58132548600000
+ 96887581 × 3000000 producing 290662743000000

= 356343706148129
