Alright, let's work through 2620 times 8358 step by step
2620 × 8358 = 8358 × (2620)
+ 8358 × 0 resulting in 0
+ 8358 × 20 which equals 167160
+ 8358 × 600 producing 5014800
+ 8358 × 2000 yielding 16716000

= 21897960
