No problem, we've got 9186 and 6720 to multiply
9186 × 6720 = 6720 × (9186)
+ 6720 × 6 producing 40320
+ 6720 × 80 that is equal 537600
+ 6720 × 100 what gives us 672000
+ 6720 × 9000 what gives us 60480000

= 61729920
