Let's divide 53866447 by 641
We're looking to find how many times 641 goes into 53866447.

Step 1:
When dividing 5 by 641, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 641

On to step 2:
53 divided by 641 is 0 with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Take the next digit (8) from the dividend and append it to 53, then repeat: 538 / 641

Going ahead to step 3:
The number 641 fits into 538 0 times, leaving a remainder of 538.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 538 and we're left with 538.
Take the next digit (6) from the dividend and append it to 538, then repeat: 5386 / 641

Step 4:
The number 641 fits into 5386 8 times, leaving a remainder of 258.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 5128 from 5386 leaves us with 258.
Take the next digit (6) from the dividend and append it to 258, then repeat: 2586 / 641

Step 5:
641 can be fit into 2586 4 times, resulting in a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 84.0
If we take 2564 away from 2586, we end up with 22.
Append the next digit (4) from the dividend to 22 and continue with: 224 / 641

Going ahead to step 6:
The number 641 fits into 224 0 times, leaving a remainder of 224.
Use 0 as the next digit of our solution. 
Result so far: 840.0
Subtract 0 from 224 to get 224.
Append the next digit (4) from the dividend to 224 and continue with: 2244 / 641

Going ahead to step 7:
641 goes into 2244 3 times with a remainder of 321.
Write down 3 as next digit of the result. 
Result so far: 8403.0
Subtracting 1923 from 2244 leaves us with 321.
Include the next digit (7) from the dividend after 321, then repeat: 3217 / 641

Moving on to step 8:
If we divide 3217 by 641, we get 5 and a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 84035.0
The remainder is 12 after subtracting 3205 from 3217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
120 divided by 641 is 0 with a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 84035.0
The remainder is 120 after subtracting 0 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 10:
If we divide 1200 by 641, we get 1 and a remainder of 559.
Record the quotient 1 as the next digit in the result. 
Result so far: 84035.01
Deduct 641 from 1200 and we're left with 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

Going ahead to step 11:
If we divide 5590 by 641, we get 8 and a remainder of 462.
Write down 8 as next digit of the result. 
Result so far: 84035.018
Subtracting 5128 from 5590 leaves us with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Advancing to step 12:
4620 divided by 641 is 7 with a remainder of 133.
Write down 7 as next digit of the result. 
Result so far: 84035.0187
Subtract 4487 from 4620 to get 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Advancing to step 13:
If we divide 1330 by 641, we get 2 and a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 84035.01872
Deduct 1282 from 1330 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 14:
480 divided by 641 is 0 with a remainder of 480.
Put 0 as the next digit of the answer. 
Result so far: 84035.01872
If we take 0 away from 480, we end up 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.

Step 15:
641 goes into 4800 7 times with a remainder of 313.
The next digit of our result is 7. 
Result so far: 84035.0187207
The remainder is 313 after subtracting 4487 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Advancing to step 16:
If we divide 3130 by 641, we get 4 and a remainder of 566.
Record the quotient 4 as the next digit in the result. 
Result so far: 84035.01872074
If we take 2564 away from 3130, we end up with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

In conclusion, the division gives 84035.01872074 with a balance of 5.66e-07.