No problem, we've got 3871 and 1700 to multiply
3871 × 1700 = 1700 × (3871)
+ 1700 × 1 giving us 1700
+ 1700 × 70 which equals 119000
+ 1700 × 800 which equals 1360000
+ 1700 × 3000 producing 5100000

= 6580700
