No problem, we've got 5174 and 3972 to multiply
5174 × 3972 = 3972 × (5174)
+ 3972 × 4 resulting in 15888
+ 3972 × 70 yielding 278040
+ 3972 × 100 what gives us 397200
+ 3972 × 5000 giving us 19860000

= 20551128
