No problem, we've got 1871 and 2007 to multiply
1871 × 2007 = 2007 × (1871)
+ 2007 × 1 giving us 2007
+ 2007 × 70 that is equal 140490
+ 2007 × 800 what gives us 1605600
+ 2007 × 1000 that results in 2007000

= 3755097
