We divide 52122129 by 660
We want to divide 52122129 by 660.

On to step 1:
660 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 660

Step 2:
52 divided by 660 is 0 with a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 52 and we're left with 52.
Grab the next digit (1) from the dividend, add it to 52, then carry on: 521 / 660

Advancing to step 3:
660 goes into 521 0 times with a remainder of 521.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 521 to get 521.
Append the next digit (2) from the dividend to 521 and continue with: 5212 / 660

On to step 4:
5212 divided by 660 is 7 with a remainder of 592.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 4620 away from 5212, we end up with 592.
Grab the next digit (2) from the dividend, add it to 592, then carry on: 5922 / 660

Advancing to step 5:
660 goes into 5922 8 times with a remainder of 642.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 5280 from 5922 leaves us with 642.
Take the next digit (1) from the dividend and append it to 642, then repeat: 6421 / 660

On to step 6:
When dividing 6421 by 660, we get 9 with a remainder of 481.
The number 9 becomes the next digit in our result. 
Result so far: 789.0
If we subtract 5940 from 6421, we get 481.
Take the next digit (2) from the dividend and append it to 481, then repeat: 4812 / 660

Advancing to step 7:
If we divide 4812 by 660, we get 7 and a remainder of 192.
Put 7 as the next digit of the answer. 
Result so far: 7897.0
The remainder is 192 after subtracting 4620 from 4812.
Include the next digit (9) from the dividend after 192, then repeat: 1929 / 660

Advancing to step 8:
1929 divided by 660 is 2 with a remainder of 609.
Write down 2 as next digit of the result. 
Result so far: 78972.0
Subtracting 1320 from 1929 leaves us with 609.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Moving on to step 9:
660 can be fit into 6090 9 times, resulting in a remainder of 150.
Use 9 as the next digit of our solution. 
Result so far: 78972.9
Subtracting 5940 from 6090 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 10:
660 can be fit into 1500 2 times, resulting in a remainder of 180.
Use 2 as the next digit of our solution. 
Result so far: 78972.92
Subtracting 1320 from 1500 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 11:
The number 660 fits into 1800 2 times, leaving a remainder of 480.
The number 2 becomes the next digit in our result. 
Result so far: 78972.922
If we take 1320 away from 1800, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Our division results in 78972.922 with a remaining 0.048.