No problem, we've got 4407 and 6621 to multiply
4407 × 6621 = 6621 × (4407)
+ 6621 × 7 what gives us 46347
+ 6621 × 00 that results in 0
+ 6621 × 400 giving us 2648400
+ 6621 × 4000 resulting in 26484000

= 29178747
