No problem, we've got 8935 and 3163 to multiply
8935 × 3163 = 3163 × (8935)
+ 3163 × 5 what gives us 15815
+ 3163 × 30 that equals 94890
+ 3163 × 900 that results in 2846700
+ 3163 × 8000 that equals 25304000

= 28261405
