No problem, we've got 6490 and 6004 to multiply
6490 × 6004 = 6004 × (6490)
+ 6004 × 0 that results in 0
+ 6004 × 90 resulting in 540360
+ 6004 × 400 that is equal 2401600
+ 6004 × 6000 that results in 36024000

= 38965960
