Let's divide 50098521 by 640
We want to divide 50098521 by 640.

Going ahead to step 1:
640 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 640

Advancing to step 2:
640 can be fit into 50 0 times, resulting in a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Include the next digit (0) from the dividend after 50, then repeat: 500 / 640

Moving on to step 3:
When dividing 500 by 640, we get 0 with a remainder of 500.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 500, we end up with 500.
Take the next digit (9) from the dividend and append it to 500, then repeat: 5009 / 640

Step 4:
If we divide 5009 by 640, we get 7 and a remainder of 529.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 4480 from 5009 to get 529.
Take the next digit (8) from the dividend and append it to 529, then repeat: 5298 / 640

Step 5:
640 can be fit into 5298 8 times, resulting in a remainder of 178.
Use 8 as the next digit of our solution. 
Result so far: 78.0
Subtracting 5120 from 5298 leaves us with 178.
Fetch the next digit (5) from the dividend, attach it to 178 and continue: 1785 / 640

Moving on to step 6:
640 goes into 1785 2 times with a remainder of 505.
Put 2 as the next digit of the answer. 
Result so far: 782.0
Deduct 1280 from 1785 and we're left with 505.
Grab the next digit (2) from the dividend, add it to 505, then carry on: 5052 / 640

Advancing to step 7:
640 can be fit into 5052 7 times, resulting in a remainder of 572.
The next digit of our result is 7. 
Result so far: 7827.0
Subtracting 4480 from 5052 leaves us with 572.
Grab the next digit (1) from the dividend, add it to 572, then carry on: 5721 / 640

Step 8:
When dividing 5721 by 640, we get 8 with a remainder of 601.
Write down 8 as next digit of the result. 
Result so far: 78278.0
If we subtract 5120 from 5721, we get 601.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

Moving on to step 9:
640 goes into 6010 9 times with a remainder of 250.
Use 9 as the next digit of our solution. 
Result so far: 78278.9
Deduct 5760 from 6010 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 10:
640 goes into 2500 3 times with a remainder of 580.
Write down 3 as next digit of the result. 
Result so far: 78278.93
If we subtract 1920 from 2500, we get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Step 11:
5800 divided by 640 is 9 with a remainder of 40.
Use 9 as the next digit of our solution. 
Result so far: 78278.939
If we take 5760 away from 5800, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 12:
400 divided by 640 is 0 with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 78278.939
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 13:
640 goes into 4000 6 times with a remainder of 160.
Put 6 as the next digit of the answer. 
Result so far: 78278.93906
Subtracting 3840 from 4000 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 14:
640 goes into 1600 2 times with a remainder of 320.
Record the quotient 2 as the next digit in the result. 
Result so far: 78278.939062
The remainder is 320 after subtracting 1280 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 15:
640 can be fit into 3200 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 78278.9390625
If we take 3200 away from 3200, 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.

Advancing to step 16:
0 divided by 640 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 78278.9390625
Deduct 0 from 0 and we're left 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.

In conclusion, the division gives 78278.9390625 with a balance of 0.0.