We look at the division of 90648498 by 485 
We're looking to find how many times 485 goes into 90648498.

Step 1:
If we divide 9 by 485, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 485

Let's proceed to step 2:
The number 485 fits into 90 0 times, leaving a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Include the next digit (6) from the dividend after 90, then repeat: 906 / 485

Let's proceed to step 3:
485 can be fit into 906 1 times, resulting in a remainder of 421.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 485 from 906, we get 421.
Bring next digit (4) of the dividend behind the 421 and repeat the process: 4214 / 485

Let's proceed to step 4:
The number 485 fits into 4214 8 times, leaving a remainder of 334.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Subtract 3880 from 4214 to get 334.
Include the next digit (8) from the dividend after 334, then repeat: 3348 / 485

Moving on to step 5:
485 can be fit into 3348 6 times, resulting in a remainder of 438.
Put 6 as the next digit of the answer. 
Result so far: 186.0
Subtracting 2910 from 3348 leaves us with 438.
Include the next digit (4) from the dividend after 438, then repeat: 4384 / 485

Going ahead to step 6:
When dividing 4384 by 485, we get 9 with a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 1869.0
Deduct 4365 from 4384 and we're left with 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 485

On to step 7:
If we divide 199 by 485, we get 0 and a remainder of 199.
Put 0 as the next digit of the answer. 
Result so far: 18690.0
Subtract 0 from 199 to get 199.
Fetch the next digit (8) from the dividend, attach it to 199 and continue: 1998 / 485

Step 8:
The number 485 fits into 1998 4 times, leaving a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 186904.0
Subtracting 1940 from 1998 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 9:
485 can be fit into 580 1 times, resulting in a remainder of 95.
Use 1 as the next digit of our solution. 
Result so far: 186904.1
Subtract 485 from 580 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 10:
When dividing 950 by 485, we get 1 with a remainder of 465.
Put 1 as the next digit of the answer. 
Result so far: 186904.11
Deduct 485 from 950 and we're left with 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

The final result is 186904.11 with a remainder of 0.465.