No problem, we've got 87450294 and 89811544 to multiply
87450294 × 89811544 = 89811544 × (87450294)
+ 89811544 × 4 what gives us 359246176
+ 89811544 × 90 giving us 8083038960
+ 89811544 × 200 that equals 17962308800
+ 89811544 × 0000 resulting in 0
+ 89811544 × 50000 that is equal 4490577200000
+ 89811544 × 400000 what gives us 35924617600000
+ 89811544 × 7000000 that equals 628680808000000
+ 89811544 × 80000000 which equals 7184923520000000

= 7854045927393936
