Alright, let's work through 87369340 times 20792748 step by step
87369340 × 20792748 = 20792748 × (87369340)
+ 20792748 × 0 that equals 0
+ 20792748 × 40 that results in 831709920
+ 20792748 × 300 that results in 6237824400
+ 20792748 × 9000 that equals 187134732000
+ 20792748 × 60000 that equals 1247564880000
+ 20792748 × 300000 giving us 6237824400000
+ 20792748 × 7000000 giving us 145549236000000
+ 20792748 × 80000000 that is equal 1663419840000000

= 1816648669546320
