No problem, we've got 3628 and 1000 to multiply
3628 × 1000 = 1000 × (3628)
+ 1000 × 8 that equals 8000
+ 1000 × 20 giving us 20000
+ 1000 × 600 giving us 600000
+ 1000 × 3000 yielding 3000000

= 3628000
