21217116 ÷ 586 
We want to divide 21217116 by 586.

Advancing to step 1:
If we divide 2 by 586, we get 0 and 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.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 586

Step 2:
The number 586 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Fetch the next digit (2) from the dividend, attach it to 21 and continue: 212 / 586

On to step 3:
212 divided by 586 is 0 with a remainder of 212.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 212 after subtracting 0 from 212.
Take the next digit (1) from the dividend and append it to 212, then repeat: 2121 / 586

Moving on to step 4:
2121 divided by 586 is 3 with a remainder of 363.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 1758 from 2121 leaves us with 363.
Bring next digit (7) of the dividend behind the 363 and repeat the process: 3637 / 586

Let's proceed to step 5:
586 can be fit into 3637 6 times, resulting in a remainder of 121.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
Deduct 3516 from 3637 and we're left with 121.
Take the next digit (1) from the dividend and append it to 121, then repeat: 1211 / 586

Moving on to step 6:
When dividing 1211 by 586, we get 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 362.0
Subtract 1172 from 1211 to get 39.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 586

Moving on to step 7:
When dividing 391 by 586, we get 0 with a remainder of 391.
The next digit of our result is 0. 
Result so far: 3620.0
If we subtract 0 from 391, we get 391.
Append the next digit (6) from the dividend to 391 and continue with: 3916 / 586

Step 8:
586 goes into 3916 6 times with a remainder of 400.
Put 6 as the next digit of the answer. 
Result so far: 36206.0
Subtract 3516 from 3916 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 9:
586 goes into 4000 6 times with a remainder of 484.
Put 6 as the next digit of the answer. 
Result so far: 36206.6
Deduct 3516 from 4000 and we're left with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Moving on to step 10:
586 goes into 4840 8 times with a remainder of 152.
Write down 8 as next digit of the result. 
Result so far: 36206.68
Subtract 4688 from 4840 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 11:
1520 divided by 586 is 2 with a remainder of 348.
The next digit of our result is 2. 
Result so far: 36206.682
Subtracting 1172 from 1520 leaves us with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Moving on to step 12:
The number 586 fits into 3480 5 times, leaving a remainder of 550.
Use 5 as the next digit of our solution. 
Result so far: 36206.6825
Subtract 2930 from 3480 to get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Going ahead to step 13:
586 can be fit into 5500 9 times, resulting in a remainder of 226.
Put 9 as the next digit of the answer. 
Result so far: 36206.68259
Subtracting 5274 from 5500 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Step 14:
2260 divided by 586 is 3 with a remainder of 502.
The number 3 becomes the next digit in our result. 
Result so far: 36206.682593
Subtract 1758 from 2260 to get 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Step 15:
The number 586 fits into 5020 8 times, leaving a remainder of 332.
Write down 8 as next digit of the result. 
Result so far: 36206.6825938
If we subtract 4688 from 5020, we get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Moving on to step 16:
3320 divided by 586 is 5 with a remainder of 390.
Record the quotient 5 as the next digit in the result. 
Result so far: 36206.68259385
Subtracting 2930 from 3320 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Our division results in 36206.68259385 with a remaining 3.9e-07.