No problem, we've got 6446789 and 6958438 to multiply
6446789 × 6958438 = 6958438 × (6446789)
+ 6958438 × 9 that results in 62625942
+ 6958438 × 80 that equals 556675040
+ 6958438 × 700 that is equal 4870906600
+ 6958438 × 6000 yielding 41750628000
+ 6958438 × 40000 which equals 278337520000
+ 6958438 × 400000 that equals 2783375200000
+ 6958438 × 6000000 that is equal 41750628000000

= 44859581555582
