No problem, we've got 12842442 and 83865655 to multiply
12842442 × 83865655 = 83865655 × (12842442)
+ 83865655 × 2 resulting in 167731310
+ 83865655 × 40 resulting in 3354626200
+ 83865655 × 400 that is equal 33546262000
+ 83865655 × 2000 yielding 167731310000
+ 83865655 × 40000 resulting in 3354626200000
+ 83865655 × 800000 that equals 67092524000000
+ 83865655 × 2000000 what gives us 167731310000000
+ 83865655 × 10000000 that equals 838656550000000

= 1077039810129510
