621403 ÷ 84 
We're looking to find how many times 84 goes into 621403.

Advancing to step 1:
If we divide 6 by 84, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 84

Advancing to step 2:
When dividing 62 by 84, we get 0 with a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 62, we end up with 62.
Grab the next digit (1) from the dividend, add it to 62, then carry on: 621 / 84

Let's proceed to step 3:
84 can be fit into 621 7 times, resulting in a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 588 from 621 and we're left with 33.
Take the next digit (4) from the dividend and append it to 33, then repeat: 334 / 84

Advancing to step 4:
84 can be fit into 334 3 times, resulting in a remainder of 82.
The next digit of our result is 3. 
Result so far: 73.0
If we subtract 252 from 334, we get 82.
Take the next digit (0) from the dividend and append it to 82, then repeat: 820 / 84

On to step 5:
When dividing 820 by 84, we get 9 with a remainder of 64.
Record the quotient 9 as the next digit in the result. 
Result so far: 739.0
The remainder is 64 after subtracting 756 from 820.
Include the next digit (3) from the dividend after 64, then repeat: 643 / 84

On to step 6:
84 can be fit into 643 7 times, resulting in a remainder of 55.
Put 7 as the next digit of the answer. 
Result so far: 7397.0
If we take 588 away from 643, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 7:
550 divided by 84 is 6 with a remainder of 46.
The number 6 becomes the next digit in our result. 
Result so far: 7397.6
Subtracting 504 from 550 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.

Going ahead to step 8:
When dividing 460 by 84, we get 5 with a remainder of 40.
The next digit of our result is 5. 
Result so far: 7397.65
Deduct 420 from 460 and we're left 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 9:
If we divide 400 by 84, we get 4 and a remainder of 64.
Use 4 as the next digit of our solution. 
Result so far: 7397.654
Subtracting 336 from 400 leaves us 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.

Advancing to step 10:
84 can be fit into 640 7 times, resulting in a remainder of 52.
Write down 7 as next digit of the result. 
Result so far: 7397.6547
If we take 588 away from 640, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 11:
If we divide 520 by 84, we get 6 and a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 7397.65476
The remainder is 16 after subtracting 504 from 520.
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 12:
The number 84 fits into 160 1 times, leaving a remainder of 76.
Record the quotient 1 as the next digit in the result. 
Result so far: 7397.654761
The remainder is 76 after subtracting 84 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 13:
760 divided by 84 is 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 7397.6547619
If we subtract 756 from 760, we get 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 14:
84 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 7397.6547619
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 7397.6547619 with a remaining 4e-08.