No problem, we've got 1864 and 2137 to multiply
1864 × 2137 = 2137 × (1864)
+ 2137 × 4 what gives us 8548
+ 2137 × 60 that equals 128220
+ 2137 × 800 that is equal 1709600
+ 2137 × 1000 that results in 2137000

= 3983368
