No problem, we've got 81427807 and 79655858 to multiply
81427807 × 79655858 = 79655858 × (81427807)
+ 79655858 × 7 producing 557591006
+ 79655858 × 00 that results in 0
+ 79655858 × 800 yielding 63724686400
+ 79655858 × 7000 resulting in 557591006000
+ 79655858 × 20000 what gives us 1593117160000
+ 79655858 × 400000 which equals 31862343200000
+ 79655858 × 1000000 giving us 79655858000000
+ 79655858 × 80000000 giving us 6372468640000000

= 6486201831643406
