No problem, we've got 5471 and 4080 to multiply
5471 × 4080 = 4080 × (5471)
+ 4080 × 1 what gives us 4080
+ 4080 × 70 that results in 285600
+ 4080 × 400 giving us 1632000
+ 4080 × 5000 that is equal 20400000

= 22321680
