No problem, we've got 8109 and 1440 to multiply
8109 × 1440 = 1440 × (8109)
+ 1440 × 9 that results in 12960
+ 1440 × 00 that equals 0
+ 1440 × 100 that results in 144000
+ 1440 × 8000 that is equal 11520000

= 11676960
