No problem, we've got 1856 and 2107 to multiply
1856 × 2107 = 2107 × (1856)
+ 2107 × 6 what gives us 12642
+ 2107 × 50 that results in 105350
+ 2107 × 800 what gives us 1685600
+ 2107 × 1000 that results in 2107000

= 3910592
