Alright, let's work through 1315 times 5664 step by step
1315 × 5664 = 5664 × (1315)
+ 5664 × 5 resulting in 28320
+ 5664 × 10 producing 56640
+ 5664 × 300 giving us 1699200
+ 5664 × 1000 producing 5664000

= 7448160
