Alright, let's work through 2817 times 7472 step by step
2817 × 7472 = 7472 × (2817)
+ 7472 × 7 that is equal 52304
+ 7472 × 10 giving us 74720
+ 7472 × 800 what gives us 5977600
+ 7472 × 2000 that equals 14944000

= 21048624
