Alright, let's work through 2604 times 5906 step by step
2604 × 5906 = 5906 × (2604)
+ 5906 × 4 producing 23624
+ 5906 × 00 that equals 0
+ 5906 × 600 producing 3543600
+ 5906 × 2000 yielding 11812000

= 15379224
