Alright, let's work through 3676 times 6429 step by step
3676 × 6429 = 6429 × (3676)
+ 6429 × 6 resulting in 38574
+ 6429 × 70 which equals 450030
+ 6429 × 600 producing 3857400
+ 6429 × 3000 giving us 19287000

= 23633004
