No problem, we've got 1843 and 2187 to multiply
1843 × 2187 = 2187 × (1843)
+ 2187 × 3 yielding 6561
+ 2187 × 40 that equals 87480
+ 2187 × 800 that results in 1749600
+ 2187 × 1000 yielding 2187000

= 4030641
