We look at the division of 35398848 by 640 
We're looking to find how many times 640 goes into 35398848.

Step 1:
If we divide 3 by 640, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 640

Going ahead to step 2:
When dividing 35 by 640, we get 0 with a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Append the next digit (3) from the dividend to 35 and continue with: 353 / 640

Step 3:
353 divided by 640 is 0 with a remainder of 353.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 353, we end up with 353.
Take the next digit (9) from the dividend and append it to 353, then repeat: 3539 / 640

Advancing to step 4:
When dividing 3539 by 640, we get 5 with a remainder of 339.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 3200 from 3539 leaves us with 339.
Bring next digit (8) of the dividend behind the 339 and repeat the process: 3398 / 640

Let's proceed to step 5:
If we divide 3398 by 640, we get 5 and a remainder of 198.
The next digit of our result is 5. 
Result so far: 55.0
Deduct 3200 from 3398 and we're left with 198.
Grab the next digit (8) from the dividend, add it to 198, then carry on: 1988 / 640

Let's proceed to step 6:
1988 divided by 640 is 3 with a remainder of 68.
Write down 3 as next digit of the result. 
Result so far: 553.0
Deduct 1920 from 1988 and we're left with 68.
Include the next digit (4) from the dividend after 68, then repeat: 684 / 640

On to step 7:
640 goes into 684 1 times with a remainder of 44.
Record the quotient 1 as the next digit in the result. 
Result so far: 5531.0
Subtract 640 from 684 to get 44.
Take the next digit (8) from the dividend and append it to 44, then repeat: 448 / 640

Let's proceed to step 8:
640 goes into 448 0 times with a remainder of 448.
Put 0 as the next digit of the answer. 
Result so far: 55310.0
Subtracting 0 from 448 leaves us with 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 9:
If we divide 4480 by 640, we get 7 and a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 55310.7
If we take 4480 away from 4480, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
0 divided by 640 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 55310.7
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
640 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 55310.7
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 55310.7 and a remainder of 0.0.