We're dividing 78990856 by 522 
Our goal is to divide 78990856 by 522.

Moving on to step 1:
7 divided by 522 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 522

Advancing to step 2:
522 can be fit into 78 0 times, resulting in a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Bring next digit (9) of the dividend behind the 78 and repeat the process: 789 / 522

Moving on to step 3:
789 divided by 522 is 1 with a remainder of 267.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 522 from 789 and we're left with 267.
Include the next digit (9) from the dividend after 267, then repeat: 2679 / 522

Let's proceed to step 4:
2679 divided by 522 is 5 with a remainder of 69.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtracting 2610 from 2679 leaves us with 69.
Take the next digit (0) from the dividend and append it to 69, then repeat: 690 / 522

Let's proceed to step 5:
If we divide 690 by 522, we get 1 and a remainder of 168.
Write down 1 as next digit of the result. 
Result so far: 151.0
If we take 522 away from 690, we end up with 168.
Fetch the next digit (8) from the dividend, attach it to 168 and continue: 1688 / 522

Moving on to step 6:
When dividing 1688 by 522, we get 3 with a remainder of 122.
Use 3 as the next digit of our solution. 
Result so far: 1513.0
If we subtract 1566 from 1688, we get 122.
Grab the next digit (5) from the dividend, add it to 122, then carry on: 1225 / 522

On to step 7:
When dividing 1225 by 522, we get 2 with a remainder of 181.
The number 2 becomes the next digit in our result. 
Result so far: 15132.0
If we subtract 1044 from 1225, we get 181.
Bring next digit (6) of the dividend behind the 181 and repeat the process: 1816 / 522

Let's proceed to step 8:
522 goes into 1816 3 times with a remainder of 250.
The number 3 becomes the next digit in our result. 
Result so far: 151323.0
Subtract 1566 from 1816 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 9:
When dividing 2500 by 522, we get 4 with a remainder of 412.
Put 4 as the next digit of the answer. 
Result so far: 151323.4
Subtract 2088 from 2500 to get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Let's proceed to step 10:
When dividing 4120 by 522, we get 7 with a remainder of 466.
Use 7 as the next digit of our solution. 
Result so far: 151323.47
Subtracting 3654 from 4120 leaves us with 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Let's proceed to step 11:
522 can be fit into 4660 8 times, resulting in a remainder of 484.
The next digit of our result is 8. 
Result so far: 151323.478
Deduct 4176 from 4660 and we're left with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

On to step 12:
When dividing 4840 by 522, we get 9 with a remainder of 142.
The number 9 becomes the next digit in our result. 
Result so far: 151323.4789
Subtract 4698 from 4840 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Step 13:
522 can be fit into 1420 2 times, resulting in a remainder of 376.
Record the quotient 2 as the next digit in the result. 
Result so far: 151323.47892
Subtract 1044 from 1420 to get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Step 14:
3760 divided by 522 is 7 with a remainder of 106.
Record the quotient 7 as the next digit in the result. 
Result so far: 151323.478927
Subtract 3654 from 3760 to get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Let's proceed to step 15:
522 goes into 1060 2 times with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 151323.4789272
Subtracting 1044 from 1060 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 16:
If we divide 160 by 522, we get 0 and a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 151323.4789272
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The final result is 151323.4789272 with a remainder of 1.6e-07.