No problem, we've got 83880517 and 93498060 to multiply
83880517 × 93498060 = 93498060 × (83880517)
+ 93498060 × 7 that equals 654486420
+ 93498060 × 10 which equals 934980600
+ 93498060 × 500 what gives us 46749030000
+ 93498060 × 0000 resulting in 0
+ 93498060 × 80000 that is equal 7479844800000
+ 93498060 × 800000 what gives us 74798448000000
+ 93498060 × 3000000 which equals 280494180000000
+ 93498060 × 80000000 giving us 7479844800000000

= 7842665611297020
