Alright, let's work through 72428873 times 58576527 step by step
72428873 × 58576527 = 58576527 × (72428873)
+ 58576527 × 3 producing 175729581
+ 58576527 × 70 yielding 4100356890
+ 58576527 × 800 resulting in 46861221600
+ 58576527 × 8000 that results in 468612216000
+ 58576527 × 20000 producing 1171530540000
+ 58576527 × 400000 resulting in 23430610800000
+ 58576527 × 2000000 giving us 117153054000000
+ 58576527 × 70000000 resulting in 4100356890000000

= 4242631834864071
