No problem, we've got 77142984 and 64478135 to multiply
77142984 × 64478135 = 64478135 × (77142984)
+ 64478135 × 4 that results in 257912540
+ 64478135 × 80 that equals 5158250800
+ 64478135 × 900 resulting in 58030321500
+ 64478135 × 2000 producing 128956270000
+ 64478135 × 40000 that is equal 2579125400000
+ 64478135 × 100000 that is equal 6447813500000
+ 64478135 × 7000000 that is equal 451346945000000
+ 64478135 × 70000000 yielding 4513469450000000

= 4974035736654840
