20109272 ÷ 669 
We want to figure out the number of times 20109272 can be divided by 669.

Step 1:
If we divide 2 by 669, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 669

Step 2:
20 divided by 669 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Append the next digit (1) from the dividend to 20 and continue with: 201 / 669

On to step 3:
If we divide 201 by 669, we get 0 and a remainder of 201.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 201 and we're left with 201.
Fetch the next digit (0) from the dividend, attach it to 201 and continue: 2010 / 669

Moving on to step 4:
If we divide 2010 by 669, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 2007 from 2010, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 669

Going ahead to step 5:
669 can be fit into 39 0 times, resulting in a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 30.0
Deduct 0 from 39 and we're left with 39.
Append the next digit (2) from the dividend to 39 and continue with: 392 / 669

On to step 6:
The number 669 fits into 392 0 times, leaving a remainder of 392.
Use 0 as the next digit of our solution. 
Result so far: 300.0
The remainder is 392 after subtracting 0 from 392.
Append the next digit (7) from the dividend to 392 and continue with: 3927 / 669

Moving on to step 7:
When dividing 3927 by 669, we get 5 with a remainder of 582.
Put 5 as the next digit of the answer. 
Result so far: 3005.0
Subtracting 3345 from 3927 leaves us with 582.
Fetch the next digit (2) from the dividend, attach it to 582 and continue: 5822 / 669

Going ahead to step 8:
If we divide 5822 by 669, we get 8 and a remainder of 470.
Put 8 as the next digit of the answer. 
Result so far: 30058.0
Subtracting 5352 from 5822 leaves us with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Moving on to step 9:
669 can be fit into 4700 7 times, resulting in a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 30058.7
Subtract 4683 from 4700 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 10:
669 goes into 170 0 times with a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 30058.7
Subtracting 0 from 170 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Going ahead to step 11:
1700 divided by 669 is 2 with a remainder of 362.
Put 2 as the next digit of the answer. 
Result so far: 30058.702
If we take 1338 away from 1700, we end up with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Going ahead to step 12:
When dividing 3620 by 669, we get 5 with a remainder of 275.
Use 5 as the next digit of our solution. 
Result so far: 30058.7025
Subtracting 3345 from 3620 leaves us with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Moving on to step 13:
669 goes into 2750 4 times with a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 30058.70254
Deduct 2676 from 2750 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 14:
669 can be fit into 740 1 times, resulting in a remainder of 71.
The number 1 becomes the next digit in our result. 
Result so far: 30058.702541
The remainder is 71 after subtracting 669 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 15:
The number 669 fits into 710 1 times, leaving a remainder of 41.
The next digit of our result is 1. 
Result so far: 30058.7025411
Deduct 669 from 710 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Our division results in 30058.7025411 with a remaining 4.1e-07.