18397221 ÷ 479 
We want to divide 18397221 by 479.

Let's proceed to step 1:
If we divide 1 by 479, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 479

Advancing to step 2:
479 can be fit into 18 0 times, resulting in a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Append the next digit (3) from the dividend to 18 and continue with: 183 / 479

Step 3:
479 can be fit into 183 0 times, resulting in a remainder of 183.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 183 to get 183.
Include the next digit (9) from the dividend after 183, then repeat: 1839 / 479

Advancing to step 4:
If we divide 1839 by 479, we get 3 and a remainder of 402.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 1437 from 1839 and we're left with 402.
Grab the next digit (7) from the dividend, add it to 402, then carry on: 4027 / 479

Let's proceed to step 5:
The number 479 fits into 4027 8 times, leaving a remainder of 195.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Deduct 3832 from 4027 and we're left with 195.
Append the next digit (2) from the dividend to 195 and continue with: 1952 / 479

Advancing to step 6:
When dividing 1952 by 479, we get 4 with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 384.0
Subtract 1916 from 1952 to get 36.
Take the next digit (2) from the dividend and append it to 36, then repeat: 362 / 479

Moving on to step 7:
479 can be fit into 362 0 times, resulting in a remainder of 362.
Put 0 as the next digit of the answer. 
Result so far: 3840.0
Deduct 0 from 362 and we're left with 362.
Bring next digit (1) of the dividend behind the 362 and repeat the process: 3621 / 479

Moving on to step 8:
If we divide 3621 by 479, we get 7 and a remainder of 268.
Write down 7 as next digit of the result. 
Result so far: 38407.0
Subtracting 3353 from 3621 leaves us with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Let's proceed to step 9:
479 can be fit into 2680 5 times, resulting in a remainder of 285.
Record the quotient 5 as the next digit in the result. 
Result so far: 38407.5
If we subtract 2395 from 2680, we get 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Let's proceed to step 10:
If we divide 2850 by 479, we get 5 and a remainder of 455.
The number 5 becomes the next digit in our result. 
Result so far: 38407.55
Subtracting 2395 from 2850 leaves us with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

After the division, we end up with 38407.55 and a remainder of 0.455.