Alright, let's work through 7321 times 2520 step by step
7321 × 2520 = 2520 × (7321)
+ 2520 × 1 that results in 2520
+ 2520 × 20 giving us 50400
+ 2520 × 300 which equals 756000
+ 2520 × 7000 that equals 17640000

= 18448920
