Alright, let's work through 8310 times 824 step by step
8310 × 824 = 824 × (8310)
+ 824 × 0 what gives us 0
+ 824 × 10 what gives us 8240
+ 824 × 300 yielding 247200
+ 824 × 8000 giving us 6592000

= 6847440
