21572707 ÷ 336 
Our goal is to divide 21572707 by 336.

Let's proceed to step 1:
2 divided by 336 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 336

On to step 2:
If we divide 21 by 336, we get 0 and a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 336

Advancing to step 3:
When dividing 215 by 336, we get 0 with a remainder of 215.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 215 after subtracting 0 from 215.
Fetch the next digit (7) from the dividend, attach it to 215 and continue: 2157 / 336

Going ahead to step 4:
2157 divided by 336 is 6 with a remainder of 141.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 2016 from 2157 leaves us with 141.
Bring next digit (2) of the dividend behind the 141 and repeat the process: 1412 / 336

On to step 5:
The number 336 fits into 1412 4 times, leaving a remainder of 68.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
The remainder is 68 after subtracting 1344 from 1412.
Take the next digit (7) from the dividend and append it to 68, then repeat: 687 / 336

Step 6:
336 can be fit into 687 2 times, resulting in a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 642.0
Subtract 672 from 687 to get 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 336

Going ahead to step 7:
336 can be fit into 150 0 times, resulting in a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 6420.0
The remainder is 150 after subtracting 0 from 150.
Take the next digit (7) from the dividend and append it to 150, then repeat: 1507 / 336

Moving on to step 8:
336 can be fit into 1507 4 times, resulting in a remainder of 163.
The number 4 becomes the next digit in our result. 
Result so far: 64204.0
Deduct 1344 from 1507 and we're left with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

On to step 9:
336 goes into 1630 4 times with a remainder of 286.
Put 4 as the next digit of the answer. 
Result so far: 64204.4
If we subtract 1344 from 1630, we get 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 10:
If we divide 2860 by 336, we get 8 and a remainder of 172.
Record the quotient 8 as the next digit in the result. 
Result so far: 64204.48
Subtracting 2688 from 2860 leaves us with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

On to step 11:
If we divide 1720 by 336, we get 5 and a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 64204.485
Subtracting 1680 from 1720 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.

Moving on to step 12:
400 divided by 336 is 1 with a remainder of 64.
Use 1 as the next digit of our solution. 
Result so far: 64204.4851
If we take 336 away from 400, we end up 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.

Let's proceed to step 13:
336 goes into 640 1 times with a remainder of 304.
Write down 1 as next digit of the result. 
Result so far: 64204.48511
Subtract 336 from 640 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Our division results in 64204.48511 with a remaining 0.000304.