No problem, we've got 80394144 and 43731666 to multiply
80394144 × 43731666 = 43731666 × (80394144)
+ 43731666 × 4 that results in 174926664
+ 43731666 × 40 resulting in 1749266640
+ 43731666 × 100 which equals 4373166600
+ 43731666 × 4000 that is equal 174926664000
+ 43731666 × 90000 resulting in 3935849940000
+ 43731666 × 300000 giving us 13119499800000
+ 43731666 × 0000000 that results in 0
+ 43731666 × 80000000 producing 3498533280000000

= 3515769853763904
