No problem, we've got 6670 and 6500 to multiply
6670 × 6500 = 6500 × (6670)
+ 6500 × 0 giving us 0
+ 6500 × 70 producing 455000
+ 6500 × 600 which equals 3900000
+ 6500 × 6000 that is equal 39000000

= 43355000
