18680121 ÷ 730 
We're looking to find how many times 730 goes into 18680121.

Moving on to step 1:
When dividing 1 by 730, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 730

Moving on to step 2:
When dividing 18 by 730, we get 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 730

Let's proceed to step 3:
When dividing 186 by 730, we get 0 with a remainder of 186.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 186 leaves us with 186.
Bring next digit (8) of the dividend behind the 186 and repeat the process: 1868 / 730

On to step 4:
730 can be fit into 1868 2 times, resulting in a remainder of 408.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 1460 from 1868 leaves us with 408.
Fetch the next digit (0) from the dividend, attach it to 408 and continue: 4080 / 730

Step 5:
If we divide 4080 by 730, we get 5 and a remainder of 430.
The next digit of our result is 5. 
Result so far: 25.0
Subtract 3650 from 4080 to get 430.
Bring next digit (1) of the dividend behind the 430 and repeat the process: 4301 / 730

Moving on to step 6:
If we divide 4301 by 730, we get 5 and a remainder of 651.
The number 5 becomes the next digit in our result. 
Result so far: 255.0
The remainder is 651 after subtracting 3650 from 4301.
Append the next digit (2) from the dividend to 651 and continue with: 6512 / 730

Moving on to step 7:
The number 730 fits into 6512 8 times, leaving a remainder of 672.
Record the quotient 8 as the next digit in the result. 
Result so far: 2558.0
Subtracting 5840 from 6512 leaves us with 672.
Take the next digit (1) from the dividend and append it to 672, then repeat: 6721 / 730

Let's proceed to step 8:
730 can be fit into 6721 9 times, resulting in a remainder of 151.
Use 9 as the next digit of our solution. 
Result so far: 25589.0
If we subtract 6570 from 6721, we get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

On to step 9:
730 goes into 1510 2 times with a remainder of 50.
Write down 2 as next digit of the result. 
Result so far: 25589.2
If we subtract 1460 from 1510, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
The number 730 fits into 500 0 times, leaving a remainder of 500.
Write down 0 as next digit of the result. 
Result so far: 25589.2
The remainder is 500 after subtracting 0 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Going ahead to step 11:
730 can be fit into 5000 6 times, resulting in a remainder of 620.
The next digit of our result is 6. 
Result so far: 25589.206
Deduct 4380 from 5000 and we're left with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Moving on to step 12:
730 can be fit into 6200 8 times, resulting in a remainder of 360.
Use 8 as the next digit of our solution. 
Result so far: 25589.2068
Subtract 5840 from 6200 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 13:
730 goes into 3600 4 times with a remainder of 680.
Use 4 as the next digit of our solution. 
Result so far: 25589.20684
If we take 2920 away from 3600, we end up with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Going ahead to step 14:
730 can be fit into 6800 9 times, resulting in a remainder of 230.
Write down 9 as next digit of the result. 
Result so far: 25589.206849
The remainder is 230 after subtracting 6570 from 6800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Let's proceed to step 15:
730 goes into 2300 3 times with a remainder of 110.
The number 3 becomes the next digit in our result. 
Result so far: 25589.2068493
If we subtract 2190 from 2300, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 16:
730 goes into 1100 1 times with a remainder of 370.
The next digit of our result is 1. 
Result so far: 25589.20684931
Deduct 730 from 1100 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

The final result is 25589.20684931 with a remainder of 3.7e-07.