Alright, let's work through 4021 times 2623 step by step
4021 × 2623 = 2623 × (4021)
+ 2623 × 1 producing 2623
+ 2623 × 20 what gives us 52460
+ 2623 × 000 what gives us 0
+ 2623 × 4000 that equals 10492000

= 10547083
