Alright, let's work through 87385350 times 51734081 step by step
87385350 × 51734081 = 51734081 × (87385350)
+ 51734081 × 0 what gives us 0
+ 51734081 × 50 producing 2586704050
+ 51734081 × 300 producing 15520224300
+ 51734081 × 5000 resulting in 258670405000
+ 51734081 × 80000 that results in 4138726480000
+ 51734081 × 300000 what gives us 15520224300000
+ 51734081 × 7000000 giving us 362138567000000
+ 51734081 × 80000000 what gives us 4138726480000000

= 4520800775113350
