No problem, we've got 3343 and 6421 to multiply
3343 × 6421 = 6421 × (3343)
+ 6421 × 3 which equals 19263
+ 6421 × 40 resulting in 256840
+ 6421 × 300 resulting in 1926300
+ 6421 × 3000 that equals 19263000

= 21465403
