Alright, let's work through 48708939 times 5902397 step by step
48708939 × 5902397 = 5902397 × (48708939)
+ 5902397 × 9 what gives us 53121573
+ 5902397 × 30 yielding 177071910
+ 5902397 × 900 which equals 5312157300
+ 5902397 × 8000 what gives us 47219176000
+ 5902397 × 00000 resulting in 0
+ 5902397 × 700000 that results in 4131677900000
+ 5902397 × 8000000 which equals 47219176000000
+ 5902397 × 40000000 yielding 236095880000000

= 287499495426783
