Alright, let's work through 84025712 times 89341728 step by step
84025712 × 89341728 = 89341728 × (84025712)
+ 89341728 × 2 which equals 178683456
+ 89341728 × 10 that results in 893417280
+ 89341728 × 700 what gives us 62539209600
+ 89341728 × 5000 what gives us 446708640000
+ 89341728 × 20000 which equals 1786834560000
+ 89341728 × 000000 giving us 0
+ 89341728 × 4000000 giving us 357366912000000
+ 89341728 × 80000000 that is equal 7147338240000000

= 7507002306510336
