No problem, we've got 8142 and 9559 to multiply
8142 × 9559 = 9559 × (8142)
+ 9559 × 2 that equals 19118
+ 9559 × 40 that is equal 382360
+ 9559 × 100 what gives us 955900
+ 9559 × 8000 that is equal 76472000

= 77829378
