No problem, we've got 3918 and 1005 to multiply
3918 × 1005 = 1005 × (3918)
+ 1005 × 8 which equals 8040
+ 1005 × 10 giving us 10050
+ 1005 × 900 producing 904500
+ 1005 × 3000 producing 3015000

= 3937590
