No problem, we've got 8921 and 1397 to multiply
8921 × 1397 = 1397 × (8921)
+ 1397 × 1 what gives us 1397
+ 1397 × 20 what gives us 27940
+ 1397 × 900 that results in 1257300
+ 1397 × 8000 which equals 11176000

= 12462637
