18266357 ÷ 721 
We want to divide 18266357 by 721.

On to step 1:
The number 721 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 721

On to step 2:
18 divided by 721 is 0 with a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Grab the next digit (2) from the dividend, add it to 18, then carry on: 182 / 721

Advancing to step 3:
If we divide 182 by 721, we get 0 and a remainder of 182.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 182 leaves us with 182.
Include the next digit (6) from the dividend after 182, then repeat: 1826 / 721

On to step 4:
The number 721 fits into 1826 2 times, leaving a remainder of 384.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 1442 from 1826, we get 384.
Bring next digit (6) of the dividend behind the 384 and repeat the process: 3846 / 721

Step 5:
When dividing 3846 by 721, we get 5 with a remainder of 241.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
The remainder is 241 after subtracting 3605 from 3846.
Take the next digit (3) from the dividend and append it to 241, then repeat: 2413 / 721

Going ahead to step 6:
The number 721 fits into 2413 3 times, leaving a remainder of 250.
Put 3 as the next digit of the answer. 
Result so far: 253.0
The remainder is 250 after subtracting 2163 from 2413.
Take the next digit (5) from the dividend and append it to 250, then repeat: 2505 / 721

On to step 7:
721 goes into 2505 3 times with a remainder of 342.
Record the quotient 3 as the next digit in the result. 
Result so far: 2533.0
Deduct 2163 from 2505 and we're left with 342.
Fetch the next digit (7) from the dividend, attach it to 342 and continue: 3427 / 721

Step 8:
721 can be fit into 3427 4 times, resulting in a remainder of 543.
The number 4 becomes the next digit in our result. 
Result so far: 25334.0
Subtract 2884 from 3427 to get 543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

Going ahead to step 9:
If we divide 5430 by 721, we get 7 and a remainder of 383.
Use 7 as the next digit of our solution. 
Result so far: 25334.7
Subtract 5047 from 5430 to get 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Advancing to step 10:
If we divide 3830 by 721, we get 5 and a remainder of 225.
The number 5 becomes the next digit in our result. 
Result so far: 25334.75
If we subtract 3605 from 3830, 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.

Moving on to step 11:
When dividing 2250 by 721, we get 3 with a remainder of 87.
The number 3 becomes the next digit in our result. 
Result so far: 25334.753
The remainder is 87 after subtracting 2163 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 12:
The number 721 fits into 870 1 times, leaving a remainder of 149.
Put 1 as the next digit of the answer. 
Result so far: 25334.7531
The remainder is 149 after subtracting 721 from 870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Let's proceed to step 13:
If we divide 1490 by 721, we get 2 and a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 25334.75312
Subtract 1442 from 1490 to 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.

On to step 14:
If we divide 480 by 721, we get 0 and a remainder of 480.
The number 0 becomes the next digit in our result. 
Result so far: 25334.75312
Subtract 0 from 480 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Moving on to step 15:
The number 721 fits into 4800 6 times, leaving a remainder of 474.
The number 6 becomes the next digit in our result. 
Result so far: 25334.7531206
The remainder is 474 after subtracting 4326 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Let's proceed to step 16:
The number 721 fits into 4740 6 times, leaving a remainder of 414.
Record the quotient 6 as the next digit in the result. 
Result so far: 25334.75312066
The remainder is 414 after subtracting 4326 from 4740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

In conclusion, the division gives 25334.75312066 with a balance of 4.14e-07.