801721 ÷ 84 
We're looking to find how many times 84 goes into 801721.

On to step 1:
84 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 84

Going ahead to step 2:
80 divided by 84 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Append the next digit (1) from the dividend to 80 and continue with: 801 / 84

Step 3:
801 divided by 84 is 9 with a remainder of 45.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 756 from 801 and we're left with 45.
Take the next digit (7) from the dividend and append it to 45, then repeat: 457 / 84

Let's proceed to step 4:
When dividing 457 by 84, we get 5 with a remainder of 37.
Write down 5 as next digit of the result. 
Result so far: 95.0
If we subtract 420 from 457, we get 37.
Append the next digit (2) from the dividend to 37 and continue with: 372 / 84

Moving on to step 5:
372 divided by 84 is 4 with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 954.0
If we take 336 away from 372, we end up with 36.
Append the next digit (1) from the dividend to 36 and continue with: 361 / 84

Advancing to step 6:
When dividing 361 by 84, we get 4 with a remainder of 25.
Put 4 as the next digit of the answer. 
Result so far: 9544.0
Subtract 336 from 361 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 7:
84 can be fit into 250 2 times, resulting in a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 9544.2
Subtract 168 from 250 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 8:
If we divide 820 by 84, we get 9 and a remainder of 64.
The next digit of our result is 9. 
Result so far: 9544.29
Subtract 756 from 820 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 9:
84 goes into 640 7 times with a remainder of 52.
Put 7 as the next digit of the answer. 
Result so far: 9544.297
The remainder is 52 after subtracting 588 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 10:
The number 84 fits into 520 6 times, leaving a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 9544.2976
Subtract 504 from 520 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
If we divide 160 by 84, we get 1 and a remainder of 76.
The number 1 becomes the next digit in our result. 
Result so far: 9544.29761
Subtracting 84 from 160 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 12:
When dividing 760 by 84, we get 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 9544.297619
If we take 756 away from 760, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 13:
84 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 9544.297619
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 14:
84 can be fit into 400 4 times, resulting in a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 9544.29761904
Deduct 336 from 400 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 9544.29761904 with a remainder of 6.4e-08.