No problem, we've got 1364 and 8439 to multiply
1364 × 8439 = 8439 × (1364)
+ 8439 × 4 giving us 33756
+ 8439 × 60 producing 506340
+ 8439 × 300 giving us 2531700
+ 8439 × 1000 that results in 8439000

= 11510796
