15973139 divided by 221 
Our goal is to divide 15973139 by 221.

Moving on to step 1:
1 divided by 221 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 221

Let's proceed to step 2:
If we divide 15 by 221, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 221

Moving on to step 3:
The number 221 fits into 159 0 times, leaving a remainder of 159.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 159, we get 159.
Fetch the next digit (7) from the dividend, attach it to 159 and continue: 1597 / 221

Moving on to step 4:
221 can be fit into 1597 7 times, resulting in a remainder of 50.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 1547 away from 1597, we end up with 50.
Take the next digit (3) from the dividend and append it to 50, then repeat: 503 / 221

On to step 5:
221 can be fit into 503 2 times, resulting in a remainder of 61.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we take 442 away from 503, we end up with 61.
Grab the next digit (1) from the dividend, add it to 61, then carry on: 611 / 221

On to step 6:
When dividing 611 by 221, we get 2 with a remainder of 169.
Put 2 as the next digit of the answer. 
Result so far: 722.0
Deduct 442 from 611 and we're left with 169.
Bring next digit (3) of the dividend behind the 169 and repeat the process: 1693 / 221

Going ahead to step 7:
221 can be fit into 1693 7 times, resulting in a remainder of 146.
Write down 7 as next digit of the result. 
Result so far: 7227.0
The remainder is 146 after subtracting 1547 from 1693.
Bring next digit (9) of the dividend behind the 146 and repeat the process: 1469 / 221

Advancing to step 8:
The number 221 fits into 1469 6 times, leaving a remainder of 143.
Use 6 as the next digit of our solution. 
Result so far: 72276.0
Deduct 1326 from 1469 and we're left with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Let's proceed to step 9:
The number 221 fits into 1430 6 times, leaving a remainder of 104.
Use 6 as the next digit of our solution. 
Result so far: 72276.6
If we take 1326 away from 1430, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 10:
221 can be fit into 1040 4 times, resulting in a remainder of 156.
The next digit of our result is 4. 
Result so far: 72276.64
The remainder is 156 after subtracting 884 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Going ahead to step 11:
When dividing 1560 by 221, we get 7 with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 72276.647
Subtract 1547 from 1560 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 12:
The number 221 fits into 130 0 times, leaving a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 72276.647
Deduct 0 from 130 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 13:
When dividing 1300 by 221, we get 5 with a remainder of 195.
The next digit of our result is 5. 
Result so far: 72276.64705
If we take 1105 away from 1300, we end up with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Moving on to step 14:
221 can be fit into 1950 8 times, resulting in a remainder of 182.
The next digit of our result is 8. 
Result so far: 72276.647058
Subtracting 1768 from 1950 leaves us with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Step 15:
When dividing 1820 by 221, we get 8 with a remainder of 52.
The next digit of our result is 8. 
Result so far: 72276.6470588
If we subtract 1768 from 1820, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final result is 72276.6470588 with a remainder of 5.2e-07.