No problem, we've got 8642 and 4580 to multiply
8642 × 4580 = 4580 × (8642)
+ 4580 × 2 that is equal 9160
+ 4580 × 40 that is equal 183200
+ 4580 × 600 that results in 2748000
+ 4580 × 8000 giving us 36640000

= 39580360
