No problem, we've got 9839 and 1374 to multiply
9839 × 1374 = 1374 × (9839)
+ 1374 × 9 what gives us 12366
+ 1374 × 30 that results in 41220
+ 1374 × 800 that is equal 1099200
+ 1374 × 9000 that equals 12366000

= 13518786
