We divide 21511290 by 69
We want to divide 21511290 by 69.

Step 1:
If we divide 2 by 69, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 69

Advancing to step 2:
If we divide 21 by 69, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 69

Step 3:
If we divide 215 by 69, we get 3 and a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 8 after subtracting 207 from 215.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 69

Step 4:
The number 69 fits into 81 1 times, leaving a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 31.0
The remainder is 12 after subtracting 69 from 81.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 69

Let's proceed to step 5:
The number 69 fits into 121 1 times, leaving a remainder of 52.
Write down 1 as next digit of the result. 
Result so far: 311.0
If we subtract 69 from 121, we get 52.
Include the next digit (2) from the dividend after 52, then repeat: 522 / 69

Advancing to step 6:
The number 69 fits into 522 7 times, leaving a remainder of 39.
The next digit of our result is 7. 
Result so far: 3117.0
If we subtract 483 from 522, we get 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 69

Step 7:
When dividing 399 by 69, we get 5 with a remainder of 54.
Use 5 as the next digit of our solution. 
Result so far: 31175.0
The remainder is 54 after subtracting 345 from 399.
Take the next digit (0) from the dividend and append it to 54, then repeat: 540 / 69

Advancing to step 8:
69 goes into 540 7 times with a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 311757.0
Deduct 483 from 540 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 9:
69 goes into 570 8 times with a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 311757.8
Deduct 552 from 570 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 10:
180 divided by 69 is 2 with a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 311757.82
If we take 138 away from 180, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 11:
The number 69 fits into 420 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 311757.826
Subtracting 414 from 420 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 12:
If we divide 60 by 69, we get 0 and a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 311757.826
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
600 divided by 69 is 8 with a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 311757.82608
If we subtract 552 from 600, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 14:
480 divided by 69 is 6 with a remainder of 66.
The number 6 becomes the next digit in our result. 
Result so far: 311757.826086
Subtract 414 from 480 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 15:
The number 69 fits into 660 9 times, leaving a remainder of 39.
The next digit of our result is 9. 
Result so far: 311757.8260869
Subtracting 621 from 660 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 16:
390 divided by 69 is 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 311757.82608695
Subtract 345 from 390 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

The final result is 311757.82608695 with a remainder of 4.5e-08.