Alright, let's work through 72458971 times 67443413 step by step
72458971 × 67443413 = 67443413 × (72458971)
+ 67443413 × 1 that equals 67443413
+ 67443413 × 70 producing 4721038910
+ 67443413 × 900 yielding 60699071700
+ 67443413 × 8000 that is equal 539547304000
+ 67443413 × 50000 resulting in 3372170650000
+ 67443413 × 400000 what gives us 26977365200000
+ 67443413 × 2000000 that equals 134886826000000
+ 67443413 × 70000000 that results in 4721038910000000

= 4886880306708023
