No problem, we've got 7844 and 4503 to multiply
7844 × 4503 = 4503 × (7844)
+ 4503 × 4 that is equal 18012
+ 4503 × 40 what gives us 180120
+ 4503 × 800 which equals 3602400
+ 4503 × 7000 producing 31521000

= 35321532
