No problem, we've got 4287 and 4636 to multiply
4287 × 4636 = 4636 × (4287)
+ 4636 × 7 giving us 32452
+ 4636 × 80 yielding 370880
+ 4636 × 200 producing 927200
+ 4636 × 4000 resulting in 18544000

= 19874532
