66480158 ÷ 425 
We're looking to find how many times 425 goes into 66480158.

On to step 1:
425 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 425

On to step 2:
When dividing 66 by 425, we get 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Include the next digit (4) from the dividend after 66, then repeat: 664 / 425

Step 3:
664 divided by 425 is 1 with a remainder of 239.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 425 from 664 to get 239.
Include the next digit (8) from the dividend after 239, then repeat: 2398 / 425

Let's proceed to step 4:
2398 divided by 425 is 5 with a remainder of 273.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Deduct 2125 from 2398 and we're left with 273.
Bring next digit (0) of the dividend behind the 273 and repeat the process: 2730 / 425

Going ahead to step 5:
2730 divided by 425 is 6 with a remainder of 180.
Use 6 as the next digit of our solution. 
Result so far: 156.0
Subtracting 2550 from 2730 leaves us with 180.
Include the next digit (1) from the dividend after 180, then repeat: 1801 / 425

Moving on to step 6:
1801 divided by 425 is 4 with a remainder of 101.
The next digit of our result is 4. 
Result so far: 1564.0
If we subtract 1700 from 1801, we get 101.
Grab the next digit (5) from the dividend, add it to 101, then carry on: 1015 / 425

Moving on to step 7:
1015 divided by 425 is 2 with a remainder of 165.
Record the quotient 2 as the next digit in the result. 
Result so far: 15642.0
If we subtract 850 from 1015, we get 165.
Append the next digit (8) from the dividend to 165 and continue with: 1658 / 425

Going ahead to step 8:
425 goes into 1658 3 times with a remainder of 383.
The number 3 becomes the next digit in our result. 
Result so far: 156423.0
If we take 1275 away from 1658, we end up with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Going ahead to step 9:
When dividing 3830 by 425, we get 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 156423.9
If we subtract 3825 from 3830, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
If we divide 50 by 425, we get 0 and a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 156423.9
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
425 can be fit into 500 1 times, resulting in a remainder of 75.
Put 1 as the next digit of the answer. 
Result so far: 156423.901
If we subtract 425 from 500, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 12:
If we divide 750 by 425, we get 1 and a remainder of 325.
Put 1 as the next digit of the answer. 
Result so far: 156423.9011
Subtracting 425 from 750 leaves us with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

The final result is 156423.9011 with a remainder of 0.00325.