No problem, we've got 1909 and 3872 to multiply
1909 × 3872 = 3872 × (1909)
+ 3872 × 9 what gives us 34848
+ 3872 × 00 resulting in 0
+ 3872 × 900 giving us 3484800
+ 3872 × 1000 that results in 3872000

= 7391648
