221381 ÷ 51 
We're looking to find how many times 51 goes into 221381.

Advancing to step 1:
When dividing 2 by 51, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 51

Let's proceed to step 2:
22 divided by 51 is 0 with a remainder of 22.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 22 after subtracting 0 from 22.
Take the next digit (1) from the dividend and append it to 22, then repeat: 221 / 51

Going ahead to step 3:
When dividing 221 by 51, we get 4 with a remainder of 17.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 204 from 221 leaves us with 17.
Take the next digit (3) from the dividend and append it to 17, then repeat: 173 / 51

Advancing to step 4:
When dividing 173 by 51, we get 3 with a remainder of 20.
Write down 3 as next digit of the result. 
Result so far: 43.0
Subtract 153 from 173 to get 20.
Include the next digit (8) from the dividend after 20, then repeat: 208 / 51

On to step 5:
51 goes into 208 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 434.0
If we subtract 204 from 208, we get 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 51

Moving on to step 6:
When dividing 41 by 51, we get 0 with a remainder of 41.
Use 0 as the next digit of our solution. 
Result so far: 4340.0
If we subtract 0 from 41, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 7:
410 divided by 51 is 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 4340.8
The remainder is 2 after subtracting 408 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
20 divided by 51 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 4340.8
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
51 can be fit into 200 3 times, resulting in a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 4340.803
The remainder is 47 after subtracting 153 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 10:
51 can be fit into 470 9 times, resulting in a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 4340.8039
Deduct 459 from 470 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 11:
51 can be fit into 110 2 times, resulting in a remainder of 8.
The next digit of our result is 2. 
Result so far: 4340.80392
Subtracting 102 from 110 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 12:
51 can be fit into 80 1 times, resulting in a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 4340.803921
The remainder is 29 after subtracting 51 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 13:
51 can be fit into 290 5 times, resulting in a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 4340.8039215
The remainder is 35 after subtracting 255 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 14:
If we divide 350 by 51, we get 6 and a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 4340.80392156
Subtract 306 from 350 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

In conclusion, the division gives 4340.80392156 with a balance of 4.4e-08.