No problem, we've got 7499579 and 89449755 to multiply
7499579 × 89449755 = 89449755 × (7499579)
+ 89449755 × 9 resulting in 805047795
+ 89449755 × 70 that is equal 6261482850
+ 89449755 × 500 what gives us 44724877500
+ 89449755 × 9000 that is equal 805047795000
+ 89449755 × 90000 what gives us 8050477950000
+ 89449755 × 400000 that equals 35779902000000
+ 89449755 × 7000000 resulting in 626148285000000

= 670835504153145
