Alright, let's work through 68121840 times 99660967 step by step
68121840 × 99660967 = 99660967 × (68121840)
+ 99660967 × 0 that equals 0
+ 99660967 × 40 what gives us 3986438680
+ 99660967 × 800 giving us 79728773600
+ 99660967 × 1000 which equals 99660967000
+ 99660967 × 20000 resulting in 1993219340000
+ 99660967 × 100000 producing 9966096700000
+ 99660967 × 8000000 resulting in 797287736000000
+ 99660967 × 60000000 that equals 5979658020000000

= 6789088448219280
