Alright, let's work through 4220 times 6660 step by step
4220 × 6660 = 6660 × (4220)
+ 6660 × 0 resulting in 0
+ 6660 × 20 what gives us 133200
+ 6660 × 200 giving us 1332000
+ 6660 × 4000 giving us 26640000

= 28105200
