No problem, we've got 1918 and 2091 to multiply
1918 × 2091 = 2091 × (1918)
+ 2091 × 8 what gives us 16728
+ 2091 × 10 yielding 20910
+ 2091 × 900 that equals 1881900
+ 2091 × 1000 that equals 2091000

= 4010538
