Alright, let's work through 13070134 times 53257304 step by step
13070134 × 53257304 = 53257304 × (13070134)
+ 53257304 × 4 which equals 213029216
+ 53257304 × 30 that is equal 1597719120
+ 53257304 × 100 which equals 5325730400
+ 53257304 × 0000 producing 0
+ 53257304 × 70000 yielding 3728011280000
+ 53257304 × 000000 producing 0
+ 53257304 × 3000000 giving us 159771912000000
+ 53257304 × 10000000 giving us 532573040000000

= 696080099758736
