No problem, we've got 6690 and 3591 to multiply
6690 × 3591 = 3591 × (6690)
+ 3591 × 0 which equals 0
+ 3591 × 90 giving us 323190
+ 3591 × 600 that equals 2154600
+ 3591 × 6000 that is equal 21546000

= 24023790
