521877 divided by 84 
Let's see how many times 84 fits into 521877.

Moving on to step 1:
The number 84 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 84

Going ahead to step 2:
If we divide 52 by 84, we get 0 and a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Fetch the next digit (1) from the dividend, attach it to 52 and continue: 521 / 84

On to step 3:
521 divided by 84 is 6 with a remainder of 17.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 504 from 521 and we're left with 17.
Include the next digit (8) from the dividend after 17, then repeat: 178 / 84

Going ahead to step 4:
The number 84 fits into 178 2 times, leaving a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
If we take 168 away from 178, we end up with 10.
Append the next digit (7) from the dividend to 10 and continue with: 107 / 84

Advancing to step 5:
84 goes into 107 1 times with a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 621.0
Subtract 84 from 107 to get 23.
Fetch the next digit (7) from the dividend, attach it to 23 and continue: 237 / 84

Let's proceed to step 6:
237 divided by 84 is 2 with a remainder of 69.
Record the quotient 2 as the next digit in the result. 
Result so far: 6212.0
The remainder is 69 after subtracting 168 from 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 7:
84 goes into 690 8 times with a remainder of 18.
The next digit of our result is 8. 
Result so far: 6212.8
The remainder is 18 after subtracting 672 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 8:
When dividing 180 by 84, we get 2 with a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 6212.82
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
If we divide 120 by 84, we get 1 and a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 6212.821
If we take 84 away from 120, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 10:
When dividing 360 by 84, we get 4 with a remainder of 24.
The next digit of our result is 4. 
Result so far: 6212.8214
If we take 336 away from 360, we end up 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.

On to step 11:
The number 84 fits into 240 2 times, leaving a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 6212.82142
The remainder is 72 after subtracting 168 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 12:
When dividing 720 by 84, we get 8 with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 6212.821428
If we subtract 672 from 720, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 13:
When dividing 480 by 84, we get 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 6212.8214285
If we take 420 away from 480, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 14:
84 can be fit into 600 7 times, resulting in a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 6212.82142857
Deduct 588 from 600 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 6212.82142857 with a remaining 1.2e-08.