21339915 ÷ 465 
Our goal is to divide 21339915 by 465.

Going ahead to step 1:
When dividing 2 by 465, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 465

On to step 2:
If we divide 21 by 465, we get 0 and a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Include the next digit (3) from the dividend after 21, then repeat: 213 / 465

Moving on to step 3:
When dividing 213 by 465, we get 0 with a remainder of 213.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 213 and we're left with 213.
Fetch the next digit (3) from the dividend, attach it to 213 and continue: 2133 / 465

Moving on to step 4:
2133 divided by 465 is 4 with a remainder of 273.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 1860 from 2133 leaves us with 273.
Append the next digit (9) from the dividend to 273 and continue with: 2739 / 465

Let's proceed to step 5:
If we divide 2739 by 465, we get 5 and a remainder of 414.
The number 5 becomes the next digit in our result. 
Result so far: 45.0
Subtracting 2325 from 2739 leaves us with 414.
Fetch the next digit (9) from the dividend, attach it to 414 and continue: 4149 / 465

Going ahead to step 6:
465 goes into 4149 8 times with a remainder of 429.
The next digit of our result is 8. 
Result so far: 458.0
Subtracting 3720 from 4149 leaves us with 429.
Append the next digit (1) from the dividend to 429 and continue with: 4291 / 465

On to step 7:
If we divide 4291 by 465, we get 9 and a remainder of 106.
The next digit of our result is 9. 
Result so far: 4589.0
If we subtract 4185 from 4291, we get 106.
Take the next digit (5) from the dividend and append it to 106, then repeat: 1065 / 465

On to step 8:
If we divide 1065 by 465, we get 2 and a remainder of 135.
The next digit of our result is 2. 
Result so far: 45892.0
Subtract 930 from 1065 to get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Moving on to step 9:
When dividing 1350 by 465, we get 2 with a remainder of 420.
Put 2 as the next digit of the answer. 
Result so far: 45892.2
Deduct 930 from 1350 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 10:
The number 465 fits into 4200 9 times, leaving a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 45892.29
If we subtract 4185 from 4200, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 11:
The number 465 fits into 150 0 times, leaving a remainder of 150.
Write down 0 as next digit of the result. 
Result so far: 45892.29
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 12:
465 goes into 1500 3 times with a remainder of 105.
The number 3 becomes the next digit in our result. 
Result so far: 45892.2903
If we subtract 1395 from 1500, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Moving on to step 13:
465 can be fit into 1050 2 times, resulting in a remainder of 120.
The number 2 becomes the next digit in our result. 
Result so far: 45892.29032
Deduct 930 from 1050 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 14:
1200 divided by 465 is 2 with a remainder of 270.
The next digit of our result is 2. 
Result so far: 45892.290322
The remainder is 270 after subtracting 930 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

After the division, we end up with 45892.290322 and a remainder of 2.7e-05.