No problem, we've got 5105 and 4044 to multiply
5105 × 4044 = 4044 × (5105)
+ 4044 × 5 that results in 20220
+ 4044 × 00 giving us 0
+ 4044 × 100 producing 404400
+ 4044 × 5000 producing 20220000

= 20644620
