Alright, let's work through 73703386 times 63837878 step by step
73703386 × 63837878 = 63837878 × (73703386)
+ 63837878 × 6 which equals 383027268
+ 63837878 × 80 producing 5107030240
+ 63837878 × 300 resulting in 19151363400
+ 63837878 × 3000 resulting in 191513634000
+ 63837878 × 00000 that results in 0
+ 63837878 × 700000 giving us 44686514600000
+ 63837878 × 3000000 yielding 191513634000000
+ 63837878 × 70000000 giving us 4468651460000000

= 4705067763654908
