66543004 ÷ 359 
We want to divide 66543004 by 359.

Moving on to step 1:
359 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 359

On to step 2:
359 goes into 66 0 times with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Fetch the next digit (5) from the dividend, attach it to 66 and continue: 665 / 359

On to step 3:
If we divide 665 by 359, we get 1 and a remainder of 306.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 359 from 665 and we're left with 306.
Include the next digit (4) from the dividend after 306, then repeat: 3064 / 359

Advancing to step 4:
If we divide 3064 by 359, we get 8 and a remainder of 192.
The next digit of our result is 8. 
Result so far: 18.0
The remainder is 192 after subtracting 2872 from 3064.
Bring next digit (3) of the dividend behind the 192 and repeat the process: 1923 / 359

On to step 5:
1923 divided by 359 is 5 with a remainder of 128.
The number 5 becomes the next digit in our result. 
Result so far: 185.0
Subtract 1795 from 1923 to get 128.
Grab the next digit (0) from the dividend, add it to 128, then carry on: 1280 / 359

On to step 6:
359 can be fit into 1280 3 times, resulting in a remainder of 203.
Put 3 as the next digit of the answer. 
Result so far: 1853.0
If we take 1077 away from 1280, we end up with 203.
Append the next digit (0) from the dividend to 203 and continue with: 2030 / 359

Going ahead to step 7:
359 goes into 2030 5 times with a remainder of 235.
The number 5 becomes the next digit in our result. 
Result so far: 18535.0
Subtract 1795 from 2030 to get 235.
Append the next digit (4) from the dividend to 235 and continue with: 2354 / 359

Moving on to step 8:
The number 359 fits into 2354 6 times, leaving a remainder of 200.
The number 6 becomes the next digit in our result. 
Result so far: 185356.0
Deduct 2154 from 2354 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 9:
If we divide 2000 by 359, we get 5 and a remainder of 205.
Write down 5 as next digit of the result. 
Result so far: 185356.5
The remainder is 205 after subtracting 1795 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 10:
2050 divided by 359 is 5 with a remainder of 255.
The next digit of our result is 5. 
Result so far: 185356.55
The remainder is 255 after subtracting 1795 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Our division results in 185356.55 with a remaining 0.255.