No problem, we've got 4129 and 8644 to multiply
4129 × 8644 = 8644 × (4129)
+ 8644 × 9 that equals 77796
+ 8644 × 20 that results in 172880
+ 8644 × 100 what gives us 864400
+ 8644 × 4000 what gives us 34576000

= 35691076
