Alright, let's work through 99968980 times 10371088 step by step
99968980 × 10371088 = 10371088 × (99968980)
+ 10371088 × 0 what gives us 0
+ 10371088 × 80 resulting in 829687040
+ 10371088 × 900 yielding 9333979200
+ 10371088 × 8000 resulting in 82968704000
+ 10371088 × 60000 which equals 622265280000
+ 10371088 × 900000 that is equal 9333979200000
+ 10371088 × 9000000 yielding 93339792000000
+ 10371088 × 90000000 yielding 933397920000000

= 1036787088850240
