Alright, let's work through 20510400 times 97082845 step by step
20510400 × 97082845 = 97082845 × (20510400)
+ 97082845 × 0 resulting in 0
+ 97082845 × 00 that results in 0
+ 97082845 × 400 that results in 38833138000
+ 97082845 × 0000 what gives us 0
+ 97082845 × 10000 that is equal 970828450000
+ 97082845 × 500000 that is equal 48541422500000
+ 97082845 × 0000000 that equals 0
+ 97082845 × 20000000 which equals 1941656900000000

= 1991207984088000
