We look at the division of 70604821 by 458 
We're looking to find how many times 458 goes into 70604821.

Step 1:
If we divide 7 by 458, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 458

Going ahead to step 2:
The number 458 fits into 70 0 times, leaving a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Grab the next digit (6) from the dividend, add it to 70, then carry on: 706 / 458

Moving on to step 3:
706 divided by 458 is 1 with a remainder of 248.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 458 from 706, we get 248.
Bring next digit (0) of the dividend behind the 248 and repeat the process: 2480 / 458

Going ahead to step 4:
2480 divided by 458 is 5 with a remainder of 190.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we subtract 2290 from 2480, we get 190.
Grab the next digit (4) from the dividend, add it to 190, then carry on: 1904 / 458

On to step 5:
If we divide 1904 by 458, we get 4 and a remainder of 72.
Record the quotient 4 as the next digit in the result. 
Result so far: 154.0
If we take 1832 away from 1904, we end up with 72.
Append the next digit (8) from the dividend to 72 and continue with: 728 / 458

Let's proceed to step 6:
If we divide 728 by 458, we get 1 and a remainder of 270.
Write down 1 as next digit of the result. 
Result so far: 1541.0
The remainder is 270 after subtracting 458 from 728.
Append the next digit (2) from the dividend to 270 and continue with: 2702 / 458

Step 7:
If we divide 2702 by 458, we get 5 and a remainder of 412.
Write down 5 as next digit of the result. 
Result so far: 15415.0
Deduct 2290 from 2702 and we're left with 412.
Fetch the next digit (1) from the dividend, attach it to 412 and continue: 4121 / 458

On to step 8:
If we divide 4121 by 458, we get 8 and a remainder of 457.
The next digit of our result is 8. 
Result so far: 154158.0
If we subtract 3664 from 4121, we get 457.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

Let's proceed to step 9:
458 goes into 4570 9 times with a remainder of 448.
Use 9 as the next digit of our solution. 
Result so far: 154158.9
Subtract 4122 from 4570 to get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Step 10:
The number 458 fits into 4480 9 times, leaving a remainder of 358.
Write down 9 as next digit of the result. 
Result so far: 154158.99
Subtracting 4122 from 4480 leaves us with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

The quotient of the division is 154158.99, and the remainder is 0.358.