No problem, we've got 9860 and 1809 to multiply
9860 × 1809 = 1809 × (9860)
+ 1809 × 0 what gives us 0
+ 1809 × 60 that equals 108540
+ 1809 × 800 that equals 1447200
+ 1809 × 9000 giving us 16281000

= 17836740
