Alright, let's work through 72589178 times 45134431 step by step
72589178 × 45134431 = 45134431 × (72589178)
+ 45134431 × 8 that equals 361075448
+ 45134431 × 70 what gives us 3159410170
+ 45134431 × 100 resulting in 4513443100
+ 45134431 × 9000 which equals 406209879000
+ 45134431 × 80000 yielding 3610754480000
+ 45134431 × 500000 that is equal 22567215500000
+ 45134431 × 2000000 producing 90268862000000
+ 45134431 × 70000000 which equals 3159410170000000

= 3276271245787718
