No problem, we've got 4521 and 8647 to multiply
4521 × 8647 = 8647 × (4521)
+ 8647 × 1 producing 8647
+ 8647 × 20 giving us 172940
+ 8647 × 500 which equals 4323500
+ 8647 × 4000 that results in 34588000

= 39093087
