No problem, we've got 1420 and 3803 to multiply
1420 × 3803 = 3803 × (1420)
+ 3803 × 0 which equals 0
+ 3803 × 20 that is equal 76060
+ 3803 × 400 yielding 1521200
+ 3803 × 1000 which equals 3803000

= 5400260
