No problem, we've got 2804 and 1804 to multiply
2804 × 1804 = 1804 × (2804)
+ 1804 × 4 that is equal 7216
+ 1804 × 00 that equals 0
+ 1804 × 800 that equals 1443200
+ 1804 × 2000 that is equal 3608000

= 5058416
