152277 divided by 21 
We want to figure out the number of times 152277 can be divided by 21.

Step 1:
1 divided by 21 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 21

On to step 2:
If we divide 15 by 21, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 21

Advancing to step 3:
The number 21 fits into 152 7 times, leaving a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 147 from 152, we get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 21

Let's proceed to step 4:
If we divide 52 by 21, we get 2 and a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 72.0
Deduct 42 from 52 and we're left with 10.
Fetch the next digit (7) from the dividend, attach it to 10 and continue: 107 / 21

Going ahead to step 5:
21 goes into 107 5 times with a remainder of 2.
The next digit of our result is 5. 
Result so far: 725.0
Deduct 105 from 107 and we're left with 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 21

Moving on to step 6:
21 can be fit into 27 1 times, resulting in a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 7251.0
Deduct 21 from 27 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
21 goes into 60 2 times with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 7251.2
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
If we divide 180 by 21, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 7251.28
If we take 168 away from 180, we end up 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.

Let's proceed to step 9:
If we divide 120 by 21, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 7251.285
If we subtract 105 from 120, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 10:
If we divide 150 by 21, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 7251.2857
Subtracting 147 from 150 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 11:
30 divided by 21 is 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 7251.28571
Deduct 21 from 30 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 12:
The number 21 fits into 90 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 7251.285714
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
21 goes into 60 2 times with a remainder of 18.
The next digit of our result is 2. 
Result so far: 7251.2857142
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 14:
If we divide 180 by 21, we get 8 and a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 7251.28571428
Deduct 168 from 180 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 7251.28571428 with a remaining 1.2e-08.