No problem, we've got 8424 and 647 to multiply
8424 × 647 = 647 × (8424)
+ 647 × 4 resulting in 2588
+ 647 × 20 that results in 12940
+ 647 × 400 resulting in 258800
+ 647 × 8000 what gives us 5176000

= 5450328
