No problem, we've got 8639 and 4545 to multiply
8639 × 4545 = 4545 × (8639)
+ 4545 × 9 giving us 40905
+ 4545 × 30 producing 136350
+ 4545 × 600 producing 2727000
+ 4545 × 8000 what gives us 36360000

= 39264255
