Alright, let's work through 72423084 times 60875451 step by step
72423084 × 60875451 = 60875451 × (72423084)
+ 60875451 × 4 producing 243501804
+ 60875451 × 80 producing 4870036080
+ 60875451 × 000 which equals 0
+ 60875451 × 3000 that is equal 182626353000
+ 60875451 × 20000 yielding 1217509020000
+ 60875451 × 400000 giving us 24350180400000
+ 60875451 × 2000000 giving us 121750902000000
+ 60875451 × 70000000 that equals 4261281570000000

= 4408787901310884
