Alright, let's work through 72648815 times 73260845 step by step
72648815 × 73260845 = 73260845 × (72648815)
+ 73260845 × 5 which equals 366304225
+ 73260845 × 10 that is equal 732608450
+ 73260845 × 800 what gives us 58608676000
+ 73260845 × 8000 that results in 586086760000
+ 73260845 × 40000 that equals 2930433800000
+ 73260845 × 600000 that is equal 43956507000000
+ 73260845 × 2000000 resulting in 146521690000000
+ 73260845 × 70000000 that equals 5128259150000000

= 5322313575148675
