No problem, we've got 84605426 and 47376257 to multiply
84605426 × 47376257 = 47376257 × (84605426)
+ 47376257 × 6 resulting in 284257542
+ 47376257 × 20 that results in 947525140
+ 47376257 × 400 giving us 18950502800
+ 47376257 × 5000 that is equal 236881285000
+ 47376257 × 00000 which equals 0
+ 47376257 × 600000 resulting in 28425754200000
+ 47376257 × 4000000 yielding 189505028000000
+ 47376257 × 80000000 that results in 3790100560000000

= 4008288405770482
