No problem, we've got 2171 and 5487 to multiply
2171 × 5487 = 5487 × (2171)
+ 5487 × 1 that equals 5487
+ 5487 × 70 resulting in 384090
+ 5487 × 100 what gives us 548700
+ 5487 × 2000 resulting in 10974000

= 11912277
