No problem, we've got 90880827 and 70718097 to multiply
90880827 × 70718097 = 70718097 × (90880827)
+ 70718097 × 7 that equals 495026679
+ 70718097 × 20 that results in 1414361940
+ 70718097 × 800 yielding 56574477600
+ 70718097 × 0000 giving us 0
+ 70718097 × 80000 yielding 5657447760000
+ 70718097 × 800000 producing 56574477600000
+ 70718097 × 0000000 yielding 0
+ 70718097 × 90000000 what gives us 6364628730000000

= 6426919139226219
