Alright, let's work through 21263711 times 87477295 step by step
21263711 × 87477295 = 87477295 × (21263711)
+ 87477295 × 1 producing 87477295
+ 87477295 × 10 giving us 874772950
+ 87477295 × 700 that is equal 61234106500
+ 87477295 × 3000 producing 262431885000
+ 87477295 × 60000 what gives us 5248637700000
+ 87477295 × 200000 resulting in 17495459000000
+ 87477295 × 1000000 resulting in 87477295000000
+ 87477295 × 20000000 that equals 1749545900000000

= 1860091919941745
