Alright, let's work through 43661921 times 42477617 step by step
43661921 × 42477617 = 42477617 × (43661921)
+ 42477617 × 1 what gives us 42477617
+ 42477617 × 20 resulting in 849552340
+ 42477617 × 900 what gives us 38229855300
+ 42477617 × 1000 producing 42477617000
+ 42477617 × 60000 that is equal 2548657020000
+ 42477617 × 600000 yielding 25486570200000
+ 42477617 × 3000000 that is equal 127432851000000
+ 42477617 × 40000000 that is equal 1699104680000000

= 1854654357722257
