No problem, we've got 2124 and 7843 to multiply
2124 × 7843 = 7843 × (2124)
+ 7843 × 4 yielding 31372
+ 7843 × 20 giving us 156860
+ 7843 × 100 what gives us 784300
+ 7843 × 2000 giving us 15686000

= 16658532
