Alright, let's work through 9409 times 1580 step by step
9409 × 1580 = 1580 × (9409)
+ 1580 × 9 that is equal 14220
+ 1580 × 00 that equals 0
+ 1580 × 400 that equals 632000
+ 1580 × 9000 that is equal 14220000

= 14866220
