No problem, we've got 82780815 and 41544841 to multiply
82780815 × 41544841 = 41544841 × (82780815)
+ 41544841 × 5 what gives us 207724205
+ 41544841 × 10 that is equal 415448410
+ 41544841 × 800 which equals 33235872800
+ 41544841 × 0000 that equals 0
+ 41544841 × 80000 what gives us 3323587280000
+ 41544841 × 700000 yielding 29081388700000
+ 41544841 × 2000000 yielding 83089682000000
+ 41544841 × 80000000 that results in 3323587280000000

= 3439115797025415
