No problem, we've got 12697741 and 53467949 to multiply
12697741 × 53467949 = 53467949 × (12697741)
+ 53467949 × 1 giving us 53467949
+ 53467949 × 40 giving us 2138717960
+ 53467949 × 700 which equals 37427564300
+ 53467949 × 7000 producing 374275643000
+ 53467949 × 90000 producing 4812115410000
+ 53467949 × 600000 that is equal 32080769400000
+ 53467949 × 2000000 yielding 106935898000000
+ 53467949 × 10000000 that equals 534679490000000

= 678922168203209
