No problem, we've got 84040473 and 83904152 to multiply
84040473 × 83904152 = 83904152 × (84040473)
+ 83904152 × 3 resulting in 251712456
+ 83904152 × 70 what gives us 5873290640
+ 83904152 × 400 giving us 33561660800
+ 83904152 × 0000 that results in 0
+ 83904152 × 40000 that is equal 3356166080000
+ 83904152 × 000000 resulting in 0
+ 83904152 × 4000000 which equals 335616608000000
+ 83904152 × 80000000 that equals 6712332160000000

= 7051344620743896
