Alright, let's work through 1804 times 5907 step by step
1804 × 5907 = 5907 × (1804)
+ 5907 × 4 resulting in 23628
+ 5907 × 00 that is equal 0
+ 5907 × 800 that equals 4725600
+ 5907 × 1000 producing 5907000

= 10656228
