Alright, let's work through 6405 times 4740 step by step
6405 × 4740 = 4740 × (6405)
+ 4740 × 5 that is equal 23700
+ 4740 × 00 yielding 0
+ 4740 × 400 that equals 1896000
+ 4740 × 6000 resulting in 28440000

= 30359700
