No problem, we've got 70749760 and 90901025 to multiply
70749760 × 90901025 = 90901025 × (70749760)
+ 90901025 × 0 that equals 0
+ 90901025 × 60 what gives us 5454061500
+ 90901025 × 700 resulting in 63630717500
+ 90901025 × 9000 that equals 818109225000
+ 90901025 × 40000 giving us 3636041000000
+ 90901025 × 700000 resulting in 63630717500000
+ 90901025 × 0000000 resulting in 0
+ 90901025 × 70000000 yielding 6363071750000000

= 6431225702504000
