Alright, let's work through 1455 times 8448 step by step
1455 × 8448 = 8448 × (1455)
+ 8448 × 5 that equals 42240
+ 8448 × 50 what gives us 422400
+ 8448 × 400 yielding 3379200
+ 8448 × 1000 what gives us 8448000

= 12291840
