Alright, let's work through 3970 times 7152 step by step
3970 × 7152 = 7152 × (3970)
+ 7152 × 0 yielding 0
+ 7152 × 70 giving us 500640
+ 7152 × 900 giving us 6436800
+ 7152 × 3000 yielding 21456000

= 28393440
