Alright, let's work through 3612 times 6408 step by step
3612 × 6408 = 6408 × (3612)
+ 6408 × 2 that is equal 12816
+ 6408 × 10 what gives us 64080
+ 6408 × 600 giving us 3844800
+ 6408 × 3000 what gives us 19224000

= 23145696
