No problem, we've got 5211 and 2421 to multiply
5211 × 2421 = 2421 × (5211)
+ 2421 × 1 producing 2421
+ 2421 × 10 producing 24210
+ 2421 × 200 which equals 484200
+ 2421 × 5000 what gives us 12105000

= 12615831
