Alright, let's work through 6144 times 6899 step by step
6144 × 6899 = 6899 × (6144)
+ 6899 × 4 that results in 27596
+ 6899 × 40 giving us 275960
+ 6899 × 100 that is equal 689900
+ 6899 × 6000 that is equal 41394000

= 42387456
