Alright, let's work through 3912 times 2152 step by step
3912 × 2152 = 2152 × (3912)
+ 2152 × 2 that is equal 4304
+ 2152 × 10 giving us 21520
+ 2152 × 900 that is equal 1936800
+ 2152 × 3000 producing 6456000

= 8418624
