We're dividing 529421 by 77 
Let's see how many times 77 fits into 529421.

Step 1:
When dividing 5 by 77, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 77

Step 2:
When dividing 52 by 77, we get 0 with a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Bring next digit (9) of the dividend behind the 52 and repeat the process: 529 / 77

Step 3:
77 goes into 529 6 times with a remainder of 67.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 462 from 529 to get 67.
Fetch the next digit (4) from the dividend, attach it to 67 and continue: 674 / 77

Advancing to step 4:
If we divide 674 by 77, we get 8 and a remainder of 58.
Record the quotient 8 as the next digit in the result. 
Result so far: 68.0
If we subtract 616 from 674, we get 58.
Include the next digit (2) from the dividend after 58, then repeat: 582 / 77

Going ahead to step 5:
If we divide 582 by 77, we get 7 and a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 687.0
The remainder is 43 after subtracting 539 from 582.
Include the next digit (1) from the dividend after 43, then repeat: 431 / 77

On to step 6:
When dividing 431 by 77, we get 5 with a remainder of 46.
The next digit of our result is 5. 
Result so far: 6875.0
Subtracting 385 from 431 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 7:
77 goes into 460 5 times with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 6875.5
Deduct 385 from 460 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 8:
When dividing 750 by 77, we get 9 with a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 6875.59
If we subtract 693 from 750, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 9:
The number 77 fits into 570 7 times, leaving a remainder of 31.
The next digit of our result is 7. 
Result so far: 6875.597
Subtract 539 from 570 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 10:
77 can be fit into 310 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 6875.5974
The remainder is 2 after subtracting 308 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
77 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 6875.5974
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 12:
77 goes into 200 2 times with a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 6875.597402
Deduct 154 from 200 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 13:
77 can be fit into 460 5 times, resulting in a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 6875.5974025
If we subtract 385 from 460, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 14:
The number 77 fits into 750 9 times, leaving a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 6875.59740259
If we take 693 away from 750, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final outcome is 6875.59740259, with a leftover of 5.7e-08.