No problem, we've got 4287 and 3656 to multiply
4287 × 3656 = 3656 × (4287)
+ 3656 × 7 that equals 25592
+ 3656 × 80 that is equal 292480
+ 3656 × 200 that is equal 731200
+ 3656 × 4000 producing 14624000

= 15673272
