Alright, let's work through 4528 times 72 step by step
4528 × 72 = 72 × (4528)
+ 72 × 8 which equals 576
+ 72 × 20 that is equal 1440
+ 72 × 500 that is equal 36000
+ 72 × 4000 that is equal 288000

= 326016
