Alright, let's work through 2415 times 6685 step by step
2415 × 6685 = 6685 × (2415)
+ 6685 × 5 which equals 33425
+ 6685 × 10 giving us 66850
+ 6685 × 400 giving us 2674000
+ 6685 × 2000 yielding 13370000

= 16144275
