644286 divided by 84 
We want to divide 644286 by 84.

Advancing to step 1:
When dividing 6 by 84, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 84

Step 2:
The number 84 fits into 64 0 times, leaving a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Include the next digit (4) from the dividend after 64, then repeat: 644 / 84

Step 3:
When dividing 644 by 84, we get 7 with a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 588 from 644, we get 56.
Bring next digit (2) of the dividend behind the 56 and repeat the process: 562 / 84

Going ahead to step 4:
When dividing 562 by 84, we get 6 with a remainder of 58.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Deduct 504 from 562 and we're left with 58.
Append the next digit (8) from the dividend to 58 and continue with: 588 / 84

Advancing to step 5:
If we divide 588 by 84, we get 7 and a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 767.0
The remainder is 0 after subtracting 588 from 588.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 84

Let's proceed to step 6:
84 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 7670.0
The remainder is 6 after subtracting 0 from 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
84 can be fit into 60 0 times, resulting in a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 7670.0
If we take 0 away from 60, 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 8:
The number 84 fits into 600 7 times, leaving a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 7670.07
If we subtract 588 from 600, 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.

Advancing to step 9:
84 can be fit into 120 1 times, resulting in a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 7670.071
If we subtract 84 from 120, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 10:
When dividing 360 by 84, we get 4 with a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 7670.0714
Subtracting 336 from 360 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.

On to step 11:
When dividing 240 by 84, we get 2 with a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 7670.07142
Subtracting 168 from 240 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 12:
If we divide 720 by 84, we get 8 and a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 7670.071428
The remainder is 48 after subtracting 672 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 13:
84 goes into 480 5 times with a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 7670.0714285
Deduct 420 from 480 and we're left 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.

Let's proceed to step 14:
If we divide 600 by 84, we get 7 and a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 7670.07142857
If we subtract 588 from 600, 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.

Our division results in 7670.07142857 with a remaining 1.2e-08.