We're dividing 21425321 by 551 
We're looking to find how many times 551 goes into 21425321.

Going ahead to step 1:
If we divide 2 by 551, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 551

Advancing to step 2:
When dividing 21 by 551, we get 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Grab the next digit (4) from the dividend, add it to 21, then carry on: 214 / 551

Moving on to step 3:
551 goes into 214 0 times with a remainder of 214.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 214 leaves us with 214.
Include the next digit (2) from the dividend after 214, then repeat: 2142 / 551

On to step 4:
551 can be fit into 2142 3 times, resulting in a remainder of 489.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 489 after subtracting 1653 from 2142.
Fetch the next digit (5) from the dividend, attach it to 489 and continue: 4895 / 551

On to step 5:
The number 551 fits into 4895 8 times, leaving a remainder of 487.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Subtract 4408 from 4895 to get 487.
Fetch the next digit (3) from the dividend, attach it to 487 and continue: 4873 / 551

Step 6:
551 goes into 4873 8 times with a remainder of 465.
Use 8 as the next digit of our solution. 
Result so far: 388.0
Subtracting 4408 from 4873 leaves us with 465.
Append the next digit (2) from the dividend to 465 and continue with: 4652 / 551

Step 7:
When dividing 4652 by 551, we get 8 with a remainder of 244.
Use 8 as the next digit of our solution. 
Result so far: 3888.0
Deduct 4408 from 4652 and we're left with 244.
Bring next digit (1) of the dividend behind the 244 and repeat the process: 2441 / 551

Let's proceed to step 8:
551 can be fit into 2441 4 times, resulting in a remainder of 237.
Put 4 as the next digit of the answer. 
Result so far: 38884.0
If we take 2204 away from 2441, we end up with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Step 9:
If we divide 2370 by 551, we get 4 and a remainder of 166.
Record the quotient 4 as the next digit in the result. 
Result so far: 38884.4
Subtracting 2204 from 2370 leaves us with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Step 10:
1660 divided by 551 is 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 38884.43
Subtracting 1653 from 1660 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
551 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 38884.43
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 12:
If we divide 700 by 551, we get 1 and a remainder of 149.
Record the quotient 1 as the next digit in the result. 
Result so far: 38884.4301
The remainder is 149 after subtracting 551 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Going ahead to step 13:
If we divide 1490 by 551, we get 2 and a remainder of 388.
Put 2 as the next digit of the answer. 
Result so far: 38884.43012
The remainder is 388 after subtracting 1102 from 1490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Moving on to step 14:
If we divide 3880 by 551, we get 7 and a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 38884.430127
If we take 3857 away from 3880, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 15:
551 can be fit into 230 0 times, resulting in a remainder of 230.
Record the quotient 0 as the next digit in the result. 
Result so far: 38884.430127
Deduct 0 from 230 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 16:
2300 divided by 551 is 4 with a remainder of 96.
Use 4 as the next digit of our solution. 
Result so far: 38884.43012704
Subtract 2204 from 2300 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

After the division, we end up with 38884.43012704 and a remainder of 9.6e-08.