We're dividing 28170215 by 577 
We want to figure out the number of times 28170215 can be divided by 577.

On to step 1:
The number 577 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 577

Going ahead to step 2:
28 divided by 577 is 0 with a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Take the next digit (1) from the dividend and append it to 28, then repeat: 281 / 577

Advancing to step 3:
577 goes into 281 0 times with a remainder of 281.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 281, we end up with 281.
Append the next digit (7) from the dividend to 281 and continue with: 2817 / 577

Advancing to step 4:
577 can be fit into 2817 4 times, resulting in a remainder of 509.
The next digit of our result is 4. 
Result so far: 4.0
If we take 2308 away from 2817, we end up with 509.
Append the next digit (0) from the dividend to 509 and continue with: 5090 / 577

Going ahead to step 5:
When dividing 5090 by 577, we get 8 with a remainder of 474.
Put 8 as the next digit of the answer. 
Result so far: 48.0
Subtracting 4616 from 5090 leaves us with 474.
Fetch the next digit (2) from the dividend, attach it to 474 and continue: 4742 / 577

On to step 6:
577 can be fit into 4742 8 times, resulting in a remainder of 126.
Write down 8 as next digit of the result. 
Result so far: 488.0
Subtract 4616 from 4742 to get 126.
Bring next digit (1) of the dividend behind the 126 and repeat the process: 1261 / 577

Moving on to step 7:
If we divide 1261 by 577, we get 2 and a remainder of 107.
The number 2 becomes the next digit in our result. 
Result so far: 4882.0
If we take 1154 away from 1261, we end up with 107.
Take the next digit (5) from the dividend and append it to 107, then repeat: 1075 / 577

Moving on to step 8:
577 can be fit into 1075 1 times, resulting in a remainder of 498.
Use 1 as the next digit of our solution. 
Result so far: 48821.0
Deduct 577 from 1075 and we're left with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

Advancing to step 9:
4980 divided by 577 is 8 with a remainder of 364.
Use 8 as the next digit of our solution. 
Result so far: 48821.8
If we take 4616 away from 4980, we end up with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Going ahead to step 10:
577 goes into 3640 6 times with a remainder of 178.
Record the quotient 6 as the next digit in the result. 
Result so far: 48821.86
If we subtract 3462 from 3640, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Step 11:
1780 divided by 577 is 3 with a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 48821.863
If we subtract 1731 from 1780, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 12:
The number 577 fits into 490 0 times, leaving a remainder of 490.
The next digit of our result is 0. 
Result so far: 48821.863
If we subtract 0 from 490, we get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

On to step 13:
577 can be fit into 4900 8 times, resulting in a remainder of 284.
The number 8 becomes the next digit in our result. 
Result so far: 48821.86308
The remainder is 284 after subtracting 4616 from 4900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

On to step 14:
When dividing 2840 by 577, we get 4 with a remainder of 532.
Write down 4 as next digit of the result. 
Result so far: 48821.863084
Subtract 2308 from 2840 to get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Going ahead to step 15:
The number 577 fits into 5320 9 times, leaving a remainder of 127.
Put 9 as the next digit of the answer. 
Result so far: 48821.8630849
Subtracting 5193 from 5320 leaves us with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 16:
577 can be fit into 1270 2 times, resulting in a remainder of 116.
Use 2 as the next digit of our solution. 
Result so far: 48821.86308492
Subtract 1154 from 1270 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

The final outcome is 48821.86308492, with a leftover of 1.16e-07.