No problem, we've got 8511 and 9971 to multiply
8511 × 9971 = 9971 × (8511)
+ 9971 × 1 which equals 9971
+ 9971 × 10 that equals 99710
+ 9971 × 500 that results in 4985500
+ 9971 × 8000 that results in 79768000

= 84863181
