We divide 7972378 by 660
We want to figure out the number of times 7972378 can be divided by 660.

On to step 1:
When dividing 7 by 660, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 660

Let's proceed to step 2:
The number 660 fits into 79 0 times, leaving a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 79, we end up with 79.
Include the next digit (7) from the dividend after 79, then repeat: 797 / 660

Advancing to step 3:
If we divide 797 by 660, we get 1 and a remainder of 137.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 137 after subtracting 660 from 797.
Include the next digit (2) from the dividend after 137, then repeat: 1372 / 660

On to step 4:
The number 660 fits into 1372 2 times, leaving a remainder of 52.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 1320 from 1372 leaves us with 52.
Take the next digit (3) from the dividend and append it to 52, then repeat: 523 / 660

Advancing to step 5:
523 divided by 660 is 0 with a remainder of 523.
The next digit of our result is 0. 
Result so far: 120.0
If we subtract 0 from 523, we get 523.
Append the next digit (7) from the dividend to 523 and continue with: 5237 / 660

Advancing to step 6:
660 can be fit into 5237 7 times, resulting in a remainder of 617.
Use 7 as the next digit of our solution. 
Result so far: 1207.0
If we subtract 4620 from 5237, we get 617.
Append the next digit (8) from the dividend to 617 and continue with: 6178 / 660

Moving on to step 7:
660 goes into 6178 9 times with a remainder of 238.
The next digit of our result is 9. 
Result so far: 12079.0
The remainder is 238 after subtracting 5940 from 6178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

On to step 8:
660 can be fit into 2380 3 times, resulting in a remainder of 400.
Use 3 as the next digit of our solution. 
Result so far: 12079.3
Subtracting 1980 from 2380 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 9:
If we divide 4000 by 660, we get 6 and a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 12079.36
If we subtract 3960 from 4000, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
When dividing 400 by 660, we get 0 with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 12079.36
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 11:
The number 660 fits into 4000 6 times, leaving a remainder of 40.
The next digit of our result is 6. 
Result so far: 12079.3606
If we subtract 3960 from 4000, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
If we divide 400 by 660, we get 0 and a remainder of 400.
The next digit of our result is 0. 
Result so far: 12079.3606
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 13:
The number 660 fits into 4000 6 times, leaving a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 12079.360606
The remainder is 40 after subtracting 3960 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 14:
If we divide 400 by 660, we get 0 and a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 12079.360606
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 15:
The number 660 fits into 4000 6 times, leaving a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 12079.36060606
If we take 3960 away from 4000, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 12079.36060606, with a leftover of 4e-08.