No problem, we've got 82167927 and 66791613 to multiply
82167927 × 66791613 = 66791613 × (82167927)
+ 66791613 × 7 giving us 467541291
+ 66791613 × 20 producing 1335832260
+ 66791613 × 900 that is equal 60112451700
+ 66791613 × 7000 resulting in 467541291000
+ 66791613 × 60000 which equals 4007496780000
+ 66791613 × 100000 giving us 6679161300000
+ 66791613 × 2000000 that equals 133583226000000
+ 66791613 × 80000000 that equals 5343329040000000

= 5488128381196251
