Alright, let's work through 1409 times 9141 step by step
1409 × 9141 = 9141 × (1409)
+ 9141 × 9 that equals 82269
+ 9141 × 00 that is equal 0
+ 9141 × 400 that results in 3656400
+ 9141 × 1000 what gives us 9141000

= 12879669
