No problem, we've got 8107 and 5007 to multiply
8107 × 5007 = 5007 × (8107)
+ 5007 × 7 resulting in 35049
+ 5007 × 00 that equals 0
+ 5007 × 100 that equals 500700
+ 5007 × 8000 giving us 40056000

= 40591749
