Alright, let's work through 72192451 times 69107847 step by step
72192451 × 69107847 = 69107847 × (72192451)
+ 69107847 × 1 what gives us 69107847
+ 69107847 × 50 yielding 3455392350
+ 69107847 × 400 producing 27643138800
+ 69107847 × 2000 that equals 138215694000
+ 69107847 × 90000 that equals 6219706230000
+ 69107847 × 100000 that is equal 6910784700000
+ 69107847 × 2000000 giving us 138215694000000
+ 69107847 × 70000000 that equals 4837549290000000

= 4989064858262997
