Alright, let's work through 47607763 times 87393473 step by step
47607763 × 87393473 = 87393473 × (47607763)
+ 87393473 × 3 yielding 262180419
+ 87393473 × 60 giving us 5243608380
+ 87393473 × 700 giving us 61175431100
+ 87393473 × 7000 giving us 611754311000
+ 87393473 × 00000 what gives us 0
+ 87393473 × 600000 that equals 52436083800000
+ 87393473 × 7000000 which equals 611754311000000
+ 87393473 × 40000000 producing 3495738920000000

= 4160607750330899
