When you do the first step which would be subtracting the 453637 from 326482745445 you get 3.264822918(x10) to the 11 power. Then you add 938464846 you get 3.274207565(x10) to the 11 power. Then you subtract 3845 from that and get 3.274207528(x10) to the 11 power. Finally you add 784657 and get 3.274215375(x10) to the 11 power.
