18449873 ÷ 426 
Our goal is to divide 18449873 by 426.

Moving on to step 1:
When dividing 1 by 426, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 426

Advancing to step 2:
426 goes into 18 0 times with a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Take the next digit (4) from the dividend and append it to 18, then repeat: 184 / 426

Moving on to step 3:
426 goes into 184 0 times with a remainder of 184.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 184 after subtracting 0 from 184.
Take the next digit (4) from the dividend and append it to 184, then repeat: 1844 / 426

On to step 4:
1844 divided by 426 is 4 with a remainder of 140.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 1704 from 1844 leaves us with 140.
Include the next digit (9) from the dividend after 140, then repeat: 1409 / 426

Let's proceed to step 5:
1409 divided by 426 is 3 with a remainder of 131.
Use 3 as the next digit of our solution. 
Result so far: 43.0
The remainder is 131 after subtracting 1278 from 1409.
Take the next digit (8) from the dividend and append it to 131, then repeat: 1318 / 426

Let's proceed to step 6:
The number 426 fits into 1318 3 times, leaving a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 433.0
Subtract 1278 from 1318 to get 40.
Grab the next digit (7) from the dividend, add it to 40, then carry on: 407 / 426

Step 7:
426 can be fit into 407 0 times, resulting in a remainder of 407.
The next digit of our result is 0. 
Result so far: 4330.0
Subtracting 0 from 407 leaves us with 407.
Bring next digit (3) of the dividend behind the 407 and repeat the process: 4073 / 426

Advancing to step 8:
When dividing 4073 by 426, we get 9 with a remainder of 239.
Write down 9 as next digit of the result. 
Result so far: 43309.0
Deduct 3834 from 4073 and we're left with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Advancing to step 9:
426 can be fit into 2390 5 times, resulting in a remainder of 260.
Put 5 as the next digit of the answer. 
Result so far: 43309.5
If we take 2130 away from 2390, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 10:
When dividing 2600 by 426, we get 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 43309.56
If we subtract 2556 from 2600, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 11:
The number 426 fits into 440 1 times, leaving a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 43309.561
The remainder is 14 after subtracting 426 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 12:
140 divided by 426 is 0 with a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 43309.561
Subtract 0 from 140 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 13:
426 goes into 1400 3 times with a remainder of 122.
The next digit of our result is 3. 
Result so far: 43309.56103
If we subtract 1278 from 1400, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Moving on to step 14:
The number 426 fits into 1220 2 times, leaving a remainder of 368.
Record the quotient 2 as the next digit in the result. 
Result so far: 43309.561032
Subtract 852 from 1220 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Let's proceed to step 15:
If we divide 3680 by 426, we get 8 and a remainder of 272.
Write down 8 as next digit of the result. 
Result so far: 43309.5610328
Subtract 3408 from 3680 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Step 16:
426 goes into 2720 6 times with a remainder of 164.
Write down 6 as next digit of the result. 
Result so far: 43309.56103286
Subtracting 2556 from 2720 leaves us with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

After the division, we end up with 43309.56103286 and a remainder of 1.64e-07.