Alright, let's work through 20978835 times 55282975 step by step
20978835 × 55282975 = 55282975 × (20978835)
+ 55282975 × 5 what gives us 276414875
+ 55282975 × 30 producing 1658489250
+ 55282975 × 800 giving us 44226380000
+ 55282975 × 8000 what gives us 442263800000
+ 55282975 × 70000 yielding 3869808250000
+ 55282975 × 900000 that results in 49754677500000
+ 55282975 × 0000000 which equals 0
+ 55282975 × 20000000 giving us 1105659500000000

= 1159772410834125
