No problem, we've got 5125 and 4135 to multiply
5125 × 4135 = 4135 × (5125)
+ 4135 × 5 producing 20675
+ 4135 × 20 that is equal 82700
+ 4135 × 100 producing 413500
+ 4135 × 5000 what gives us 20675000

= 21191875
