Alright, let's work through 63940322 times 38668689 step by step
63940322 × 38668689 = 38668689 × (63940322)
+ 38668689 × 2 what gives us 77337378
+ 38668689 × 20 that is equal 773373780
+ 38668689 × 300 what gives us 11600606700
+ 38668689 × 0000 what gives us 0
+ 38668689 × 40000 yielding 1546747560000
+ 38668689 × 900000 that equals 34801820100000
+ 38668689 × 3000000 which equals 116006067000000
+ 38668689 × 60000000 that equals 2320121340000000

= 2472488425977858
