Alright, let's work through 8104540 times 52288807 step by step
8104540 × 52288807 = 52288807 × (8104540)
+ 52288807 × 0 yielding 0
+ 52288807 × 40 producing 2091552280
+ 52288807 × 500 giving us 26144403500
+ 52288807 × 4000 which equals 209155228000
+ 52288807 × 00000 giving us 0
+ 52288807 × 100000 that results in 5228880700000
+ 52288807 × 8000000 producing 418310456000000

= 423776727883780
