18123485 ÷ 674 
Our goal is to divide 18123485 by 674.

Step 1:
1 divided by 674 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 674

On to step 2:
674 can be fit into 18 0 times, resulting in a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Append the next digit (1) from the dividend to 18 and continue with: 181 / 674

Let's proceed to step 3:
674 can be fit into 181 0 times, resulting in a remainder of 181.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 181, we end up with 181.
Take the next digit (2) from the dividend and append it to 181, then repeat: 1812 / 674

Let's proceed to step 4:
1812 divided by 674 is 2 with a remainder of 464.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 1348 from 1812 and we're left with 464.
Include the next digit (3) from the dividend after 464, then repeat: 4643 / 674

Advancing to step 5:
The number 674 fits into 4643 6 times, leaving a remainder of 599.
Use 6 as the next digit of our solution. 
Result so far: 26.0
If we take 4044 away from 4643, we end up with 599.
Fetch the next digit (4) from the dividend, attach it to 599 and continue: 5994 / 674

Moving on to step 6:
674 goes into 5994 8 times with a remainder of 602.
The next digit of our result is 8. 
Result so far: 268.0
If we take 5392 away from 5994, we end up with 602.
Include the next digit (8) from the dividend after 602, then repeat: 6028 / 674

Moving on to step 7:
6028 divided by 674 is 8 with a remainder of 636.
Write down 8 as next digit of the result. 
Result so far: 2688.0
If we subtract 5392 from 6028, we get 636.
Fetch the next digit (5) from the dividend, attach it to 636 and continue: 6365 / 674

Let's proceed to step 8:
If we divide 6365 by 674, we get 9 and a remainder of 299.
Use 9 as the next digit of our solution. 
Result so far: 26889.0
Subtract 6066 from 6365 to get 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

On to step 9:
2990 divided by 674 is 4 with a remainder of 294.
Use 4 as the next digit of our solution. 
Result so far: 26889.4
The remainder is 294 after subtracting 2696 from 2990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 10:
If we divide 2940 by 674, we get 4 and a remainder of 244.
Put 4 as the next digit of the answer. 
Result so far: 26889.44
Deduct 2696 from 2940 and we're left with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

The final outcome is 26889.44, with a leftover of 0.244.