Alright, let's work through 8572 times 8445 step by step
8572 × 8445 = 8445 × (8572)
+ 8445 × 2 that results in 16890
+ 8445 × 70 that results in 591150
+ 8445 × 500 which equals 4222500
+ 8445 × 8000 that equals 67560000

= 72390540
