Alright, let's work through 72143929 times 52667084 step by step
72143929 × 52667084 = 52667084 × (72143929)
+ 52667084 × 9 that is equal 474003756
+ 52667084 × 20 which equals 1053341680
+ 52667084 × 900 that results in 47400375600
+ 52667084 × 3000 producing 158001252000
+ 52667084 × 40000 that is equal 2106683360000
+ 52667084 × 100000 resulting in 5266708400000
+ 52667084 × 2000000 that equals 105334168000000
+ 52667084 × 70000000 yielding 3686695880000000

= 3799610368733036
