20398984 divided by 669 
Let's see how many times 669 fits into 20398984.

Going ahead to step 1:
2 divided by 669 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 669

Going ahead to step 2:
669 goes into 20 0 times with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Fetch the next digit (3) from the dividend, attach it to 20 and continue: 203 / 669

Step 3:
If we divide 203 by 669, we get 0 and a remainder of 203.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 203, we end up with 203.
Append the next digit (9) from the dividend to 203 and continue with: 2039 / 669

Moving on to step 4:
The number 669 fits into 2039 3 times, leaving a remainder of 32.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 2007 from 2039 and we're left with 32.
Take the next digit (8) from the dividend and append it to 32, then repeat: 328 / 669

Moving on to step 5:
The number 669 fits into 328 0 times, leaving a remainder of 328.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtract 0 from 328 to get 328.
Grab the next digit (9) from the dividend, add it to 328, then carry on: 3289 / 669

Going ahead to step 6:
669 goes into 3289 4 times with a remainder of 613.
The next digit of our result is 4. 
Result so far: 304.0
Subtract 2676 from 3289 to get 613.
Append the next digit (8) from the dividend to 613 and continue with: 6138 / 669

Going ahead to step 7:
The number 669 fits into 6138 9 times, leaving a remainder of 117.
Put 9 as the next digit of the answer. 
Result so far: 3049.0
Subtracting 6021 from 6138 leaves us with 117.
Append the next digit (4) from the dividend to 117 and continue with: 1174 / 669

Let's proceed to step 8:
When dividing 1174 by 669, we get 1 with a remainder of 505.
The next digit of our result is 1. 
Result so far: 30491.0
If we subtract 669 from 1174, we get 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Advancing to step 9:
When dividing 5050 by 669, we get 7 with a remainder of 367.
Write down 7 as next digit of the result. 
Result so far: 30491.7
If we take 4683 away from 5050, we end up with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Advancing to step 10:
669 goes into 3670 5 times with a remainder of 325.
The next digit of our result is 5. 
Result so far: 30491.75
Subtract 3345 from 3670 to get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

On to step 11:
If we divide 3250 by 669, we get 4 and a remainder of 574.
The number 4 becomes the next digit in our result. 
Result so far: 30491.754
Subtract 2676 from 3250 to get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Step 12:
The number 669 fits into 5740 8 times, leaving a remainder of 388.
Put 8 as the next digit of the answer. 
Result so far: 30491.7548
The remainder is 388 after subtracting 5352 from 5740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

On to step 13:
When dividing 3880 by 669, we get 5 with a remainder of 535.
The next digit of our result is 5. 
Result so far: 30491.75485
If we take 3345 away from 3880, we end up with 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Going ahead to step 14:
When dividing 5350 by 669, we get 7 with a remainder of 667.
Put 7 as the next digit of the answer. 
Result so far: 30491.754857
Subtract 4683 from 5350 to get 667.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6670, and continue the process.

Step 15:
669 goes into 6670 9 times with a remainder of 649.
Record the quotient 9 as the next digit in the result. 
Result so far: 30491.7548579
If we take 6021 away from 6670, we end up with 649.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6490, and continue the process.

Let's proceed to step 16:
The number 669 fits into 6490 9 times, leaving a remainder of 469.
Record the quotient 9 as the next digit in the result. 
Result so far: 30491.75485799
Subtracting 6021 from 6490 leaves us with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

In conclusion, the division gives 30491.75485799 with a balance of 4.69e-07.