No problem, we've got 72781992 and 78698669 to multiply
72781992 × 78698669 = 78698669 × (72781992)
+ 78698669 × 2 which equals 157397338
+ 78698669 × 90 what gives us 7082880210
+ 78698669 × 900 that equals 70828802100
+ 78698669 × 1000 yielding 78698669000
+ 78698669 × 80000 that equals 6295893520000
+ 78698669 × 700000 that equals 55089068300000
+ 78698669 × 2000000 that equals 157397338000000
+ 78698669 × 70000000 which equals 5508906830000000

= 5727845897568648
