No problem, we've got 1027 and 3638 to multiply
1027 × 3638 = 3638 × (1027)
+ 3638 × 7 that equals 25466
+ 3638 × 20 that equals 72760
+ 3638 × 000 giving us 0
+ 3638 × 1000 what gives us 3638000

= 3736226
