No problem, we've got 1629 and 6471 to multiply
1629 × 6471 = 6471 × (1629)
+ 6471 × 9 resulting in 58239
+ 6471 × 20 resulting in 129420
+ 6471 × 600 what gives us 3882600
+ 6471 × 1000 yielding 6471000

= 10541259
