Alright, let's work through 2109 times 7416 step by step
2109 × 7416 = 7416 × (2109)
+ 7416 × 9 that equals 66744
+ 7416 × 00 that is equal 0
+ 7416 × 100 resulting in 741600
+ 7416 × 2000 which equals 14832000

= 15640344
