Alright, let's work through 2291 times 6630 step by step
2291 × 6630 = 6630 × (2291)
+ 6630 × 1 that is equal 6630
+ 6630 × 90 yielding 596700
+ 6630 × 200 that equals 1326000
+ 6630 × 2000 giving us 13260000

= 15189330
