Alright, let's work through 43689557 times 45681377 step by step
43689557 × 45681377 = 45681377 × (43689557)
+ 45681377 × 7 that equals 319769639
+ 45681377 × 50 producing 2284068850
+ 45681377 × 500 which equals 22840688500
+ 45681377 × 9000 that equals 411132393000
+ 45681377 × 80000 what gives us 3654510160000
+ 45681377 × 600000 what gives us 27408826200000
+ 45681377 × 3000000 giving us 137044131000000
+ 45681377 × 40000000 that is equal 1827255080000000

= 1995799124279989
