Let's divide 66804153 by 643
We're looking to find how many times 643 goes into 66804153.

Moving on to step 1:
The number 643 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 643

On to step 2:
When dividing 66 by 643, we get 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Grab the next digit (8) from the dividend, add it to 66, then carry on: 668 / 643

On to step 3:
668 divided by 643 is 1 with a remainder of 25.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 643 from 668 leaves us with 25.
Bring next digit (0) of the dividend behind the 25 and repeat the process: 250 / 643

Let's proceed to step 4:
When dividing 250 by 643, we get 0 with a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 250 and we're left with 250.
Bring next digit (4) of the dividend behind the 250 and repeat the process: 2504 / 643

Going ahead to step 5:
If we divide 2504 by 643, we get 3 and a remainder of 575.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
If we take 1929 away from 2504, we end up with 575.
Take the next digit (1) from the dividend and append it to 575, then repeat: 5751 / 643

Moving on to step 6:
643 can be fit into 5751 8 times, resulting in a remainder of 607.
Put 8 as the next digit of the answer. 
Result so far: 1038.0
Subtract 5144 from 5751 to get 607.
Include the next digit (5) from the dividend after 607, then repeat: 6075 / 643

On to step 7:
When dividing 6075 by 643, we get 9 with a remainder of 288.
Put 9 as the next digit of the answer. 
Result so far: 10389.0
Subtract 5787 from 6075 to get 288.
Take the next digit (3) from the dividend and append it to 288, then repeat: 2883 / 643

Going ahead to step 8:
If we divide 2883 by 643, we get 4 and a remainder of 311.
Record the quotient 4 as the next digit in the result. 
Result so far: 103894.0
Subtracting 2572 from 2883 leaves us with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Advancing to step 9:
643 goes into 3110 4 times with a remainder of 538.
Use 4 as the next digit of our solution. 
Result so far: 103894.4
If we take 2572 away from 3110, we end up with 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

On to step 10:
The number 643 fits into 5380 8 times, leaving a remainder of 236.
Put 8 as the next digit of the answer. 
Result so far: 103894.48
The remainder is 236 after subtracting 5144 from 5380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Advancing to step 11:
643 can be fit into 2360 3 times, resulting in a remainder of 431.
Use 3 as the next digit of our solution. 
Result so far: 103894.483
Subtracting 1929 from 2360 leaves us with 431.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4310, and continue the process.

Going ahead to step 12:
4310 divided by 643 is 6 with a remainder of 452.
Put 6 as the next digit of the answer. 
Result so far: 103894.4836
If we take 3858 away from 4310, we end up with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Moving on to step 13:
If we divide 4520 by 643, we get 7 and a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 103894.48367
If we take 4501 away from 4520, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 14:
The number 643 fits into 190 0 times, leaving a remainder of 190.
Put 0 as the next digit of the answer. 
Result so far: 103894.48367
Subtract 0 from 190 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 15:
1900 divided by 643 is 2 with a remainder of 614.
Put 2 as the next digit of the answer. 
Result so far: 103894.4836702
The remainder is 614 after subtracting 1286 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

Moving on to step 16:
If we divide 6140 by 643, we get 9 and a remainder of 353.
Record the quotient 9 as the next digit in the result. 
Result so far: 103894.48367029
Subtracting 5787 from 6140 leaves us with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

The final result is 103894.48367029 with a remainder of 3.53e-07.