Alright, let's work through 2343 times 4209 step by step
2343 × 4209 = 4209 × (2343)
+ 4209 × 3 that is equal 12627
+ 4209 × 40 yielding 168360
+ 4209 × 300 resulting in 1262700
+ 4209 × 2000 that results in 8418000

= 9861687
