No problem, we've got 79078488 and 39721709 to multiply
79078488 × 39721709 = 39721709 × (79078488)
+ 39721709 × 8 giving us 317773672
+ 39721709 × 80 which equals 3177736720
+ 39721709 × 400 that equals 15888683600
+ 39721709 × 8000 yielding 317773672000
+ 39721709 × 70000 which equals 2780519630000
+ 39721709 × 000000 that is equal 0
+ 39721709 × 9000000 that is equal 357495381000000
+ 39721709 × 70000000 producing 2780519630000000

= 3141132688495992
