Let's divide 53746668 by 640
Our goal is to divide 53746668 by 640.

Step 1:
When dividing 5 by 640, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 640

Going ahead to step 2:
When dividing 53 by 640, we get 0 with a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Take the next digit (7) from the dividend and append it to 53, then repeat: 537 / 640

Let's proceed to step 3:
The number 640 fits into 537 0 times, leaving a remainder of 537.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 537 after subtracting 0 from 537.
Grab the next digit (4) from the dividend, add it to 537, then carry on: 5374 / 640

Let's proceed to step 4:
640 can be fit into 5374 8 times, resulting in a remainder of 254.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 5120 from 5374 and we're left with 254.
Include the next digit (6) from the dividend after 254, then repeat: 2546 / 640

Step 5:
If we divide 2546 by 640, we get 3 and a remainder of 626.
The next digit of our result is 3. 
Result so far: 83.0
If we take 1920 away from 2546, we end up with 626.
Grab the next digit (6) from the dividend, add it to 626, then carry on: 6266 / 640

Going ahead to step 6:
640 goes into 6266 9 times with a remainder of 506.
The number 9 becomes the next digit in our result. 
Result so far: 839.0
If we take 5760 away from 6266, we end up with 506.
Fetch the next digit (6) from the dividend, attach it to 506 and continue: 5066 / 640

Advancing to step 7:
640 goes into 5066 7 times with a remainder of 586.
Put 7 as the next digit of the answer. 
Result so far: 8397.0
If we subtract 4480 from 5066, we get 586.
Append the next digit (8) from the dividend to 586 and continue with: 5868 / 640

Let's proceed to step 8:
If we divide 5868 by 640, we get 9 and a remainder of 108.
Record the quotient 9 as the next digit in the result. 
Result so far: 83979.0
If we take 5760 away from 5868, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 9:
640 can be fit into 1080 1 times, resulting in a remainder of 440.
The number 1 becomes the next digit in our result. 
Result so far: 83979.1
Subtract 640 from 1080 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 10:
640 goes into 4400 6 times with a remainder of 560.
The next digit of our result is 6. 
Result so far: 83979.16
Deduct 3840 from 4400 and we're left with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 11:
640 goes into 5600 8 times with a remainder of 480.
The next digit of our result is 8. 
Result so far: 83979.168
Deduct 5120 from 5600 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 12:
If we divide 4800 by 640, we get 7 and a remainder of 320.
Use 7 as the next digit of our solution. 
Result so far: 83979.1687
If we take 4480 away from 4800, we end up 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.

Advancing to step 13:
If we divide 3200 by 640, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 83979.16875
The remainder is 0 after subtracting 3200 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 14:
640 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 83979.16875
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.

Moving on to step 15:
The number 640 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 83979.16875
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 outcome is 83979.16875, with a leftover of 0.0.