No problem, we've got 4507 and 5121 to multiply
4507 × 5121 = 5121 × (4507)
+ 5121 × 7 resulting in 35847
+ 5121 × 00 resulting in 0
+ 5121 × 500 giving us 2560500
+ 5121 × 4000 that results in 20484000

= 23080347
