No problem, we've got 2403 and 2135 to multiply
2403 × 2135 = 2135 × (2403)
+ 2135 × 3 which equals 6405
+ 2135 × 00 producing 0
+ 2135 × 400 which equals 854000
+ 2135 × 2000 yielding 4270000

= 5130405
