Alright, let's work through 72365453 times 71360608 step by step
72365453 × 71360608 = 71360608 × (72365453)
+ 71360608 × 3 that results in 214081824
+ 71360608 × 50 that equals 3568030400
+ 71360608 × 400 producing 28544243200
+ 71360608 × 5000 which equals 356803040000
+ 71360608 × 60000 which equals 4281636480000
+ 71360608 × 300000 yielding 21408182400000
+ 71360608 × 2000000 yielding 142721216000000
+ 71360608 × 70000000 that equals 4995242560000000

= 5164042724275424
