We look at the division of 407521 by 98 
We're looking to find how many times 98 goes into 407521.

Step 1:
The number 98 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 98

On to step 2:
40 divided by 98 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Include the next digit (7) from the dividend after 40, then repeat: 407 / 98

Advancing to step 3:
407 divided by 98 is 4 with a remainder of 15.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 392 from 407 leaves us with 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 98

Advancing to step 4:
98 goes into 155 1 times with a remainder of 57.
Write down 1 as next digit of the result. 
Result so far: 41.0
Subtract 98 from 155 to get 57.
Append the next digit (2) from the dividend to 57 and continue with: 572 / 98

Advancing to step 5:
572 divided by 98 is 5 with a remainder of 82.
Put 5 as the next digit of the answer. 
Result so far: 415.0
The remainder is 82 after subtracting 490 from 572.
Fetch the next digit (1) from the dividend, attach it to 82 and continue: 821 / 98

Moving on to step 6:
98 goes into 821 8 times with a remainder of 37.
Write down 8 as next digit of the result. 
Result so far: 4158.0
If we subtract 784 from 821, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 7:
370 divided by 98 is 3 with a remainder of 76.
Put 3 as the next digit of the answer. 
Result so far: 4158.3
Deduct 294 from 370 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 8:
760 divided by 98 is 7 with a remainder of 74.
The next digit of our result is 7. 
Result so far: 4158.37
The remainder is 74 after subtracting 686 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 9:
When dividing 740 by 98, we get 7 with a remainder of 54.
The next digit of our result is 7. 
Result so far: 4158.377
The remainder is 54 after subtracting 686 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 4158.377 with a remaining 0.0054.