Alright, let's work through 6463493 times 49278420 step by step
6463493 × 49278420 = 49278420 × (6463493)
+ 49278420 × 3 yielding 147835260
+ 49278420 × 90 what gives us 4435057800
+ 49278420 × 400 that equals 19711368000
+ 49278420 × 3000 producing 147835260000
+ 49278420 × 60000 which equals 2956705200000
+ 49278420 × 400000 yielding 19711368000000
+ 49278420 × 6000000 that is equal 295670520000000

= 318510722721060
