No problem, we've got 3804 and 3005 to multiply
3804 × 3005 = 3005 × (3804)
+ 3005 × 4 giving us 12020
+ 3005 × 00 giving us 0
+ 3005 × 800 that equals 2404000
+ 3005 × 3000 that is equal 9015000

= 11431020
