We look at the division of 12181869 by 808 
We want to divide 12181869 by 808.

Advancing to step 1:
808 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 808

Advancing to step 2:
If we divide 12 by 808, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 808

On to step 3:
808 can be fit into 121 0 times, resulting in a remainder of 121.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 121 and we're left with 121.
Include the next digit (8) from the dividend after 121, then repeat: 1218 / 808

Let's proceed to step 4:
If we divide 1218 by 808, we get 1 and a remainder of 410.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 808 from 1218, we get 410.
Bring next digit (1) of the dividend behind the 410 and repeat the process: 4101 / 808

Advancing to step 5:
4101 divided by 808 is 5 with a remainder of 61.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Deduct 4040 from 4101 and we're left with 61.
Bring next digit (8) of the dividend behind the 61 and repeat the process: 618 / 808

Moving on to step 6:
When dividing 618 by 808, we get 0 with a remainder of 618.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
If we subtract 0 from 618, we get 618.
Include the next digit (6) from the dividend after 618, then repeat: 6186 / 808

Let's proceed to step 7:
The number 808 fits into 6186 7 times, leaving a remainder of 530.
The number 7 becomes the next digit in our result. 
Result so far: 1507.0
Subtract 5656 from 6186 to get 530.
Append the next digit (9) from the dividend to 530 and continue with: 5309 / 808

On to step 8:
808 can be fit into 5309 6 times, resulting in a remainder of 461.
Write down 6 as next digit of the result. 
Result so far: 15076.0
Deduct 4848 from 5309 and we're left with 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

On to step 9:
If we divide 4610 by 808, we get 5 and a remainder of 570.
Record the quotient 5 as the next digit in the result. 
Result so far: 15076.5
If we subtract 4040 from 4610, we get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Advancing to step 10:
5700 divided by 808 is 7 with a remainder of 44.
Use 7 as the next digit of our solution. 
Result so far: 15076.57
Subtracting 5656 from 5700 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 11:
808 can be fit into 440 0 times, resulting in a remainder of 440.
Put 0 as the next digit of the answer. 
Result so far: 15076.57
The remainder is 440 after subtracting 0 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 12:
808 goes into 4400 5 times with a remainder of 360.
Record the quotient 5 as the next digit in the result. 
Result so far: 15076.5705
Subtract 4040 from 4400 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.

Step 13:
If we divide 3600 by 808, we get 4 and a remainder of 368.
Write down 4 as next digit of the result. 
Result so far: 15076.57054
If we take 3232 away from 3600, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 14:
808 goes into 3680 4 times with a remainder of 448.
Put 4 as the next digit of the answer. 
Result so far: 15076.570544
Subtract 3232 from 3680 to get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Our division results in 15076.570544 with a remaining 4.48e-05.