No problem, we've got 9819579 and 71728867 to multiply
9819579 × 71728867 = 71728867 × (9819579)
+ 71728867 × 9 that is equal 645559803
+ 71728867 × 70 that is equal 5021020690
+ 71728867 × 500 yielding 35864433500
+ 71728867 × 9000 what gives us 645559803000
+ 71728867 × 10000 that results in 717288670000
+ 71728867 × 800000 resulting in 57383093600000
+ 71728867 × 9000000 yielding 645559803000000

= 704347276086993
