No problem, we've got 2073 and 6436 to multiply
2073 × 6436 = 6436 × (2073)
+ 6436 × 3 producing 19308
+ 6436 × 70 what gives us 450520
+ 6436 × 000 yielding 0
+ 6436 × 2000 yielding 12872000

= 13341828
