Alright, let's work through 4220 times 3025 step by step
4220 × 3025 = 3025 × (4220)
+ 3025 × 0 producing 0
+ 3025 × 20 that equals 60500
+ 3025 × 200 that equals 605000
+ 3025 × 4000 producing 12100000

= 12765500
