We divide 18139990 by 669
We want to divide 18139990 by 669.

Moving on to step 1:
If we divide 1 by 669, we get 0 and a remainder of 1.
Write down 0 as next digit of the 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 / 669

Let's proceed to step 2:
If we divide 18 by 669, we get 0 and a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Append the next digit (1) from the dividend to 18 and continue with: 181 / 669

Let's proceed to step 3:
669 goes into 181 0 times with a remainder of 181.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 181, we get 181.
Append the next digit (3) from the dividend to 181 and continue with: 1813 / 669

Advancing to step 4:
669 can be fit into 1813 2 times, resulting in a remainder of 475.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 1338 from 1813 leaves us with 475.
Bring next digit (9) of the dividend behind the 475 and repeat the process: 4759 / 669

Going ahead to step 5:
4759 divided by 669 is 7 with a remainder of 76.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we take 4683 away from 4759, we end up with 76.
Fetch the next digit (9) from the dividend, attach it to 76 and continue: 769 / 669

Advancing to step 6:
The number 669 fits into 769 1 times, leaving a remainder of 100.
Use 1 as the next digit of our solution. 
Result so far: 271.0
Deduct 669 from 769 and we're left with 100.
Append the next digit (9) from the dividend to 100 and continue with: 1009 / 669

Moving on to step 7:
1009 divided by 669 is 1 with a remainder of 340.
Use 1 as the next digit of our solution. 
Result so far: 2711.0
The remainder is 340 after subtracting 669 from 1009.
Append the next digit (0) from the dividend to 340 and continue with: 3400 / 669

Moving on to step 8:
669 can be fit into 3400 5 times, resulting in a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 27115.0
If we subtract 3345 from 3400, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 9:
If we divide 550 by 669, we get 0 and a remainder of 550.
Record the quotient 0 as the next digit in the result. 
Result so far: 27115.0
If we take 0 away from 550, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Let's proceed to step 10:
669 can be fit into 5500 8 times, resulting in a remainder of 148.
Put 8 as the next digit of the answer. 
Result so far: 27115.08
Subtract 5352 from 5500 to get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 11:
669 can be fit into 1480 2 times, resulting in a remainder of 142.
Use 2 as the next digit of our solution. 
Result so far: 27115.082
If we take 1338 away from 1480, we end up with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Moving on to step 12:
The number 669 fits into 1420 2 times, leaving a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 27115.0822
The remainder is 82 after subtracting 1338 from 1420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The quotient of the division is 27115.0822, and the remainder is 0.00082.