No problem, we've got 5511 and 1231 to multiply
5511 × 1231 = 1231 × (5511)
+ 1231 × 1 what gives us 1231
+ 1231 × 10 which equals 12310
+ 1231 × 500 yielding 615500
+ 1231 × 5000 producing 6155000

= 6784041
