Let's divide 21321261 by 775
We want to figure out the number of times 21321261 can be divided by 775.

On to step 1:
2 divided by 775 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 775

On to step 2:
775 can be fit into 21 0 times, resulting in a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Fetch the next digit (3) from the dividend, attach it to 21 and continue: 213 / 775

Let's proceed to step 3:
If we divide 213 by 775, we get 0 and a remainder of 213.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 213 and we're left with 213.
Include the next digit (2) from the dividend after 213, then repeat: 2132 / 775

Moving on to step 4:
2132 divided by 775 is 2 with a remainder of 582.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 582 after subtracting 1550 from 2132.
Include the next digit (1) from the dividend after 582, then repeat: 5821 / 775

Moving on to step 5:
775 can be fit into 5821 7 times, resulting in a remainder of 396.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
If we subtract 5425 from 5821, we get 396.
Grab the next digit (2) from the dividend, add it to 396, then carry on: 3962 / 775

On to step 6:
3962 divided by 775 is 5 with a remainder of 87.
Put 5 as the next digit of the answer. 
Result so far: 275.0
If we take 3875 away from 3962, we end up with 87.
Fetch the next digit (6) from the dividend, attach it to 87 and continue: 876 / 775

On to step 7:
The number 775 fits into 876 1 times, leaving a remainder of 101.
The next digit of our result is 1. 
Result so far: 2751.0
Subtracting 775 from 876 leaves us with 101.
Take the next digit (1) from the dividend and append it to 101, then repeat: 1011 / 775

Advancing to step 8:
775 can be fit into 1011 1 times, resulting in a remainder of 236.
Record the quotient 1 as the next digit in the result. 
Result so far: 27511.0
If we subtract 775 from 1011, we get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

On to step 9:
When dividing 2360 by 775, we get 3 with a remainder of 35.
Write down 3 as next digit of the result. 
Result so far: 27511.3
Deduct 2325 from 2360 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 10:
775 goes into 350 0 times with a remainder of 350.
The next digit of our result is 0. 
Result so far: 27511.3
If we subtract 0 from 350, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 11:
When dividing 3500 by 775, we get 4 with a remainder of 400.
The next digit of our result is 4. 
Result so far: 27511.304
Deduct 3100 from 3500 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 12:
The number 775 fits into 4000 5 times, leaving a remainder of 125.
Put 5 as the next digit of the answer. 
Result so far: 27511.3045
The remainder is 125 after subtracting 3875 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 13:
775 can be fit into 1250 1 times, resulting in a remainder of 475.
Record the quotient 1 as the next digit in the result. 
Result so far: 27511.30451
Subtract 775 from 1250 to get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Going ahead to step 14:
4750 divided by 775 is 6 with a remainder of 100.
The number 6 becomes the next digit in our result. 
Result so far: 27511.304516
If we take 4650 away from 4750, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 15:
The number 775 fits into 1000 1 times, leaving a remainder of 225.
Put 1 as the next digit of the answer. 
Result so far: 27511.3045161
If we subtract 775 from 1000, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Step 16:
When dividing 2250 by 775, we get 2 with a remainder of 700.
Record the quotient 2 as the next digit in the result. 
Result so far: 27511.30451612
The remainder is 700 after subtracting 1550 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The final outcome is 27511.30451612, with a leftover of 7e-07.