No problem, we've got 8374 and 1399 to multiply
8374 × 1399 = 1399 × (8374)
+ 1399 × 4 what gives us 5596
+ 1399 × 70 that equals 97930
+ 1399 × 300 resulting in 419700
+ 1399 × 8000 resulting in 11192000

= 11715226
