Alright, let's work through 6373 times 3220 step by step
6373 × 3220 = 3220 × (6373)
+ 3220 × 3 resulting in 9660
+ 3220 × 70 giving us 225400
+ 3220 × 300 that results in 966000
+ 3220 × 6000 yielding 19320000

= 20521060
