No problem, we've got 79785496 and 5009091 to multiply
79785496 × 5009091 = 5009091 × (79785496)
+ 5009091 × 6 resulting in 30054546
+ 5009091 × 90 yielding 450818190
+ 5009091 × 400 resulting in 2003636400
+ 5009091 × 5000 yielding 25045455000
+ 5009091 × 80000 yielding 400727280000
+ 5009091 × 700000 giving us 3506363700000
+ 5009091 × 9000000 that results in 45081819000000
+ 5009091 × 70000000 yielding 350636370000000

= 399652809944136
