77209377 ÷ 522 
Our goal is to divide 77209377 by 522.

Moving on to step 1:
If we divide 7 by 522, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 522

Advancing to step 2:
The number 522 fits into 77 0 times, leaving a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Append the next digit (2) from the dividend to 77 and continue with: 772 / 522

Let's proceed to step 3:
772 divided by 522 is 1 with a remainder of 250.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 522 from 772 and we're left with 250.
Include the next digit (0) from the dividend after 250, then repeat: 2500 / 522

Let's proceed to step 4:
522 goes into 2500 4 times with a remainder of 412.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtract 2088 from 2500 to get 412.
Append the next digit (9) from the dividend to 412 and continue with: 4129 / 522

Going ahead to step 5:
When dividing 4129 by 522, we get 7 with a remainder of 475.
The next digit of our result is 7. 
Result so far: 147.0
Subtracting 3654 from 4129 leaves us with 475.
Append the next digit (3) from the dividend to 475 and continue with: 4753 / 522

Going ahead to step 6:
The number 522 fits into 4753 9 times, leaving a remainder of 55.
The number 9 becomes the next digit in our result. 
Result so far: 1479.0
Subtracting 4698 from 4753 leaves us with 55.
Fetch the next digit (7) from the dividend, attach it to 55 and continue: 557 / 522

Moving on to step 7:
557 divided by 522 is 1 with a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 14791.0
If we subtract 522 from 557, we get 35.
Bring next digit (7) of the dividend behind the 35 and repeat the process: 357 / 522

Step 8:
522 goes into 357 0 times with a remainder of 357.
The next digit of our result is 0. 
Result so far: 147910.0
Deduct 0 from 357 and we're left with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Advancing to step 9:
522 goes into 3570 6 times with a remainder of 438.
The next digit of our result is 6. 
Result so far: 147910.6
If we take 3132 away from 3570, we end up with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Moving on to step 10:
522 goes into 4380 8 times with a remainder of 204.
Write down 8 as next digit of the result. 
Result so far: 147910.68
Subtract 4176 from 4380 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Let's proceed to step 11:
522 goes into 2040 3 times with a remainder of 474.
The number 3 becomes the next digit in our result. 
Result so far: 147910.683
The remainder is 474 after subtracting 1566 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Going ahead to step 12:
If we divide 4740 by 522, we get 9 and a remainder of 42.
Record the quotient 9 as the next digit in the result. 
Result so far: 147910.6839
Deduct 4698 from 4740 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 13:
If we divide 420 by 522, we get 0 and a remainder of 420.
Use 0 as the next digit of our solution. 
Result so far: 147910.6839
Deduct 0 from 420 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 14:
If we divide 4200 by 522, we get 8 and a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 147910.683908
Subtracting 4176 from 4200 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 15:
If we divide 240 by 522, we get 0 and a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 147910.683908
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 16:
If we divide 2400 by 522, we get 4 and a remainder of 312.
Record the quotient 4 as the next digit in the result. 
Result so far: 147910.68390804
Deduct 2088 from 2400 and we're left with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

The final result is 147910.68390804 with a remainder of 3.12e-07.