Alright, let's work through 79039337 times 79801857 step by step
79039337 × 79801857 = 79801857 × (79039337)
+ 79801857 × 7 that equals 558612999
+ 79801857 × 30 resulting in 2394055710
+ 79801857 × 300 that results in 23940557100
+ 79801857 × 9000 giving us 718216713000
+ 79801857 × 30000 that equals 2394055710000
+ 79801857 × 000000 yielding 0
+ 79801857 × 9000000 yielding 718216713000000
+ 79801857 × 70000000 that results in 5586129990000000

= 6307485868648809
