No problem, we've got 98980469 and 71445547 to multiply
98980469 × 71445547 = 71445547 × (98980469)
+ 71445547 × 9 what gives us 643009923
+ 71445547 × 60 that is equal 4286732820
+ 71445547 × 400 yielding 28578218800
+ 71445547 × 0000 that equals 0
+ 71445547 × 80000 giving us 5715643760000
+ 71445547 × 900000 producing 64300992300000
+ 71445547 × 8000000 resulting in 571564376000000
+ 71445547 × 90000000 which equals 6430099230000000

= 7071713750021543
