We're dividing 81668851 by 672 
We're looking to find how many times 672 goes into 81668851.

Advancing to step 1:
If we divide 8 by 672, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 672

Step 2:
672 can be fit into 81 0 times, resulting in a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (6) from the dividend, add it to 81, then carry on: 816 / 672

Let's proceed to step 3:
816 divided by 672 is 1 with a remainder of 144.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 672 away from 816, we end up with 144.
Grab the next digit (6) from the dividend, add it to 144, then carry on: 1446 / 672

Let's proceed to step 4:
If we divide 1446 by 672, we get 2 and a remainder of 102.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 1344 from 1446 leaves us with 102.
Fetch the next digit (8) from the dividend, attach it to 102 and continue: 1028 / 672

Step 5:
If we divide 1028 by 672, we get 1 and a remainder of 356.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
Deduct 672 from 1028 and we're left with 356.
Bring next digit (8) of the dividend behind the 356 and repeat the process: 3568 / 672

Step 6:
The number 672 fits into 3568 5 times, leaving a remainder of 208.
The next digit of our result is 5. 
Result so far: 1215.0
Subtracting 3360 from 3568 leaves us with 208.
Append the next digit (5) from the dividend to 208 and continue with: 2085 / 672

Step 7:
The number 672 fits into 2085 3 times, leaving a remainder of 69.
Put 3 as the next digit of the answer. 
Result so far: 12153.0
Subtracting 2016 from 2085 leaves us with 69.
Append the next digit (1) from the dividend to 69 and continue with: 691 / 672

On to step 8:
The number 672 fits into 691 1 times, leaving a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 121531.0
Subtract 672 from 691 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 9:
672 can be fit into 190 0 times, resulting in a remainder of 190.
The next digit of our result is 0. 
Result so far: 121531.0
Subtract 0 from 190 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 10:
The number 672 fits into 1900 2 times, leaving a remainder of 556.
The number 2 becomes the next digit in our result. 
Result so far: 121531.02
If we subtract 1344 from 1900, we get 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Moving on to step 11:
672 can be fit into 5560 8 times, resulting in a remainder of 184.
Use 8 as the next digit of our solution. 
Result so far: 121531.028
Deduct 5376 from 5560 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

On to step 12:
672 can be fit into 1840 2 times, resulting in a remainder of 496.
The number 2 becomes the next digit in our result. 
Result so far: 121531.0282
If we subtract 1344 from 1840, we get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

On to step 13:
If we divide 4960 by 672, we get 7 and a remainder of 256.
Use 7 as the next digit of our solution. 
Result so far: 121531.02827
If we subtract 4704 from 4960, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 14:
The number 672 fits into 2560 3 times, leaving a remainder of 544.
The next digit of our result is 3. 
Result so far: 121531.028273
If we take 2016 away from 2560, we end up with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Moving on to step 15:
672 can be fit into 5440 8 times, resulting in a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 121531.0282738
Deduct 5376 from 5440 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 16:
When dividing 640 by 672, we get 0 with a remainder of 640.
Write down 0 as next digit of the result. 
Result so far: 121531.0282738
The remainder is 640 after subtracting 0 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Our division results in 121531.0282738 with a remaining 6.4e-07.