No problem, we've got 8521 and 1959 to multiply
8521 × 1959 = 1959 × (8521)
+ 1959 × 1 resulting in 1959
+ 1959 × 20 that results in 39180
+ 1959 × 500 what gives us 979500
+ 1959 × 8000 producing 15672000

= 16692639
