Alright, let's work through 1455 times 8240 step by step
1455 × 8240 = 8240 × (1455)
+ 8240 × 5 yielding 41200
+ 8240 × 50 yielding 412000
+ 8240 × 400 producing 3296000
+ 8240 × 1000 giving us 8240000

= 11989200
