No problem, we've got 5815 and 9981 to multiply
5815 × 9981 = 9981 × (5815)
+ 9981 × 5 that equals 49905
+ 9981 × 10 that results in 99810
+ 9981 × 800 that equals 7984800
+ 9981 × 5000 yielding 49905000

= 58039515
