Alright, let's work through 5445 times 5664 step by step
5445 × 5664 = 5664 × (5445)
+ 5664 × 5 what gives us 28320
+ 5664 × 40 yielding 226560
+ 5664 × 400 that equals 2265600
+ 5664 × 5000 that is equal 28320000

= 30840480
