No problem, we've got 1835 and 2168 to multiply
1835 × 2168 = 2168 × (1835)
+ 2168 × 5 giving us 10840
+ 2168 × 30 what gives us 65040
+ 2168 × 800 yielding 1734400
+ 2168 × 1000 resulting in 2168000

= 3978280
