We divide 54943985 by 640
Let's see how many times 640 fits into 54943985.

Step 1:
640 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 640

Going ahead to step 2:
54 divided by 640 is 0 with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Fetch the next digit (9) from the dividend, attach it to 54 and continue: 549 / 640

Going ahead to step 3:
640 goes into 549 0 times with a remainder of 549.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 549, we end up with 549.
Append the next digit (4) from the dividend to 549 and continue with: 5494 / 640

Step 4:
When dividing 5494 by 640, we get 8 with a remainder of 374.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 5120 from 5494 to get 374.
Include the next digit (3) from the dividend after 374, then repeat: 3743 / 640

Going ahead to step 5:
640 goes into 3743 5 times with a remainder of 543.
The next digit of our result is 5. 
Result so far: 85.0
If we subtract 3200 from 3743, we get 543.
Append the next digit (9) from the dividend to 543 and continue with: 5439 / 640

Step 6:
640 goes into 5439 8 times with a remainder of 319.
Write down 8 as next digit of the result. 
Result so far: 858.0
If we take 5120 away from 5439, we end up with 319.
Grab the next digit (8) from the dividend, add it to 319, then carry on: 3198 / 640

Advancing to step 7:
640 goes into 3198 4 times with a remainder of 638.
Record the quotient 4 as the next digit in the result. 
Result so far: 8584.0
Subtract 2560 from 3198 to get 638.
Bring next digit (5) of the dividend behind the 638 and repeat the process: 6385 / 640

Advancing to step 8:
If we divide 6385 by 640, we get 9 and a remainder of 625.
Put 9 as the next digit of the answer. 
Result so far: 85849.0
Subtracting 5760 from 6385 leaves us with 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Step 9:
6250 divided by 640 is 9 with a remainder of 490.
Write down 9 as next digit of the result. 
Result so far: 85849.9
Subtracting 5760 from 6250 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Let's proceed to step 10:
The number 640 fits into 4900 7 times, leaving a remainder of 420.
Write down 7 as next digit of the result. 
Result so far: 85849.97
The remainder is 420 after subtracting 4480 from 4900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Going ahead to step 11:
640 goes into 4200 6 times with a remainder of 360.
The number 6 becomes the next digit in our result. 
Result so far: 85849.976
If we subtract 3840 from 4200, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 12:
The number 640 fits into 3600 5 times, leaving a remainder of 400.
Write down 5 as next digit of the result. 
Result so far: 85849.9765
If we subtract 3200 from 3600, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 13:
4000 divided by 640 is 6 with a remainder of 160.
The number 6 becomes the next digit in our result. 
Result so far: 85849.97656
Subtract 3840 from 4000 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 14:
If we divide 1600 by 640, we get 2 and a remainder of 320.
Use 2 as the next digit of our solution. 
Result so far: 85849.976562
Subtracting 1280 from 1600 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 15:
The number 640 fits into 3200 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 85849.9765625
Subtracting 3200 from 3200 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.

Moving on to step 16:
When dividing 0 by 640, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 85849.9765625
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 85849.9765625 with a remainder of 0.0.