No problem, we've got 99987154 and 47283698 to multiply
99987154 × 47283698 = 47283698 × (99987154)
+ 47283698 × 4 that is equal 189134792
+ 47283698 × 50 which equals 2364184900
+ 47283698 × 100 what gives us 4728369800
+ 47283698 × 7000 what gives us 330985886000
+ 47283698 × 80000 giving us 3782695840000
+ 47283698 × 900000 that results in 42555328200000
+ 47283698 × 9000000 giving us 425553282000000
+ 47283698 × 90000000 which equals 4255532820000000

= 4727762393615492
