Alright, let's work through 72352281 times 50972429 step by step
72352281 × 50972429 = 50972429 × (72352281)
+ 50972429 × 1 which equals 50972429
+ 50972429 × 80 producing 4077794320
+ 50972429 × 200 what gives us 10194485800
+ 50972429 × 2000 producing 101944858000
+ 50972429 × 50000 yielding 2548621450000
+ 50972429 × 300000 giving us 15291728700000
+ 50972429 × 2000000 what gives us 101944858000000
+ 50972429 × 70000000 producing 3568070030000000

= 3687971506260549
