Alright, let's work through 2191 times 4570 step by step
2191 × 4570 = 4570 × (2191)
+ 4570 × 1 that results in 4570
+ 4570 × 90 that equals 411300
+ 4570 × 100 resulting in 457000
+ 4570 × 2000 producing 9140000

= 10012870
