No problem, we've got 5181 and 4033 to multiply
5181 × 4033 = 4033 × (5181)
+ 4033 × 1 resulting in 4033
+ 4033 × 80 producing 322640
+ 4033 × 100 that results in 403300
+ 4033 × 5000 that results in 20165000

= 20894973
