No problem, we've got 84222838 and 86727423 to multiply
84222838 × 86727423 = 86727423 × (84222838)
+ 86727423 × 8 giving us 693819384
+ 86727423 × 30 which equals 2601822690
+ 86727423 × 800 that results in 69381938400
+ 86727423 × 2000 yielding 173454846000
+ 86727423 × 20000 producing 1734548460000
+ 86727423 × 200000 that is equal 17345484600000
+ 86727423 × 4000000 that equals 346909692000000
+ 86727423 × 80000000 giving us 6938193840000000

= 7304429697486474
