21596900 ÷ 76 
Our goal is to divide 21596900 by 76.

Going ahead to step 1:
76 goes into 2 0 times 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.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 76

Step 2:
76 goes into 21 0 times with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Grab the next digit (5) from the dividend, add it to 21, then carry on: 215 / 76

Moving on to step 3:
76 can be fit into 215 2 times, resulting in a remainder of 63.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 152 away from 215, we end up with 63.
Include the next digit (9) from the dividend after 63, then repeat: 639 / 76

Let's proceed to step 4:
76 can be fit into 639 8 times, resulting in a remainder of 31.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
Subtract 608 from 639 to get 31.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 76

Step 5:
76 goes into 316 4 times with a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 284.0
If we subtract 304 from 316, we get 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 76

Let's proceed to step 6:
When dividing 129 by 76, we get 1 with a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 2841.0
Subtract 76 from 129 to get 53.
Take the next digit (0) from the dividend and append it to 53, then repeat: 530 / 76

Let's proceed to step 7:
The number 76 fits into 530 6 times, leaving a remainder of 74.
The next digit of our result is 6. 
Result so far: 28416.0
The remainder is 74 after subtracting 456 from 530.
Grab the next digit (0) from the dividend, add it to 74, then carry on: 740 / 76

Step 8:
76 can be fit into 740 9 times, resulting in a remainder of 56.
The number 9 becomes the next digit in our result. 
Result so far: 284169.0
If we subtract 684 from 740, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 9:
76 goes into 560 7 times with a remainder of 28.
Write down 7 as next digit of the result. 
Result so far: 284169.7
Subtracting 532 from 560 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
76 can be fit into 280 3 times, resulting in a remainder of 52.
Use 3 as the next digit of our solution. 
Result so far: 284169.73
If we subtract 228 from 280, 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.

Step 11:
When dividing 520 by 76, we get 6 with a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 284169.736
The remainder is 64 after subtracting 456 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 12:
76 can be fit into 640 8 times, resulting in a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 284169.7368
If we subtract 608 from 640, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 13:
76 can be fit into 320 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 284169.73684
If we take 304 away from 320, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
If we divide 160 by 76, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 284169.736842
Deduct 152 from 160 and we're left 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.

Moving on to step 15:
80 divided by 76 is 1 with a remainder of 4.
The next digit of our result is 1. 
Result so far: 284169.7368421
Deduct 76 from 80 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 16:
40 divided by 76 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 284169.7368421
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 284169.7368421 with a remainder of 4e-08.