We divide 73878255 by 660
We want to figure out the number of times 73878255 can be divided by 660.

Moving on to step 1:
660 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 660

Step 2:
660 can be fit into 73 0 times, resulting in a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Grab the next digit (8) from the dividend, add it to 73, then carry on: 738 / 660

Advancing to step 3:
738 divided by 660 is 1 with a remainder of 78.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 660 from 738 to get 78.
Bring next digit (7) of the dividend behind the 78 and repeat the process: 787 / 660

Step 4:
When dividing 787 by 660, we get 1 with a remainder of 127.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 127 after subtracting 660 from 787.
Include the next digit (8) from the dividend after 127, then repeat: 1278 / 660

On to step 5:
1278 divided by 660 is 1 with a remainder of 618.
The number 1 becomes the next digit in our result. 
Result so far: 111.0
Deduct 660 from 1278 and we're left with 618.
Include the next digit (2) from the dividend after 618, then repeat: 6182 / 660

Let's proceed to step 6:
If we divide 6182 by 660, we get 9 and a remainder of 242.
Record the quotient 9 as the next digit in the result. 
Result so far: 1119.0
If we take 5940 away from 6182, we end up with 242.
Append the next digit (5) from the dividend to 242 and continue with: 2425 / 660

On to step 7:
The number 660 fits into 2425 3 times, leaving a remainder of 445.
Put 3 as the next digit of the answer. 
Result so far: 11193.0
The remainder is 445 after subtracting 1980 from 2425.
Include the next digit (5) from the dividend after 445, then repeat: 4455 / 660

On to step 8:
660 can be fit into 4455 6 times, resulting in a remainder of 495.
Record the quotient 6 as the next digit in the result. 
Result so far: 111936.0
Deduct 3960 from 4455 and we're left with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Moving on to step 9:
660 goes into 4950 7 times with a remainder of 330.
Record the quotient 7 as the next digit in the result. 
Result so far: 111936.7
The remainder is 330 after subtracting 4620 from 4950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Moving on to step 10:
When dividing 3300 by 660, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 111936.75
If we take 3300 away from 3300, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
If we divide 0 by 660, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 111936.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
0 divided by 660 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 111936.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 111936.75 and a remainder of 0.0.