Alright, let's work through 7172 times 7544 step by step
7172 × 7544 = 7544 × (7172)
+ 7544 × 2 which equals 15088
+ 7544 × 70 that equals 528080
+ 7544 × 100 resulting in 754400
+ 7544 × 7000 that is equal 52808000

= 54105568
