No problem, we've got 8140 and 5107 to multiply
8140 × 5107 = 5107 × (8140)
+ 5107 × 0 producing 0
+ 5107 × 40 that is equal 204280
+ 5107 × 100 which equals 510700
+ 5107 × 8000 what gives us 40856000

= 41570980
