Alright, let's work through 7484 times 2155 step by step
7484 × 2155 = 2155 × (7484)
+ 2155 × 4 resulting in 8620
+ 2155 × 80 giving us 172400
+ 2155 × 400 producing 862000
+ 2155 × 7000 yielding 15085000

= 16128020
