No problem, we've got 7987 and 6465 to multiply
7987 × 6465 = 6465 × (7987)
+ 6465 × 7 that equals 45255
+ 6465 × 80 yielding 517200
+ 6465 × 900 producing 5818500
+ 6465 × 7000 that is equal 45255000

= 51635955
