We're dividing 36033690 by 643 
We want to divide 36033690 by 643.

On to step 1:
643 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 643

Advancing to step 2:
643 goes into 36 0 times with a remainder of 36.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 36 after subtracting 0 from 36.
Fetch the next digit (0) from the dividend, attach it to 36 and continue: 360 / 643

Advancing to step 3:
360 divided by 643 is 0 with a remainder of 360.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 360 to get 360.
Append the next digit (3) from the dividend to 360 and continue with: 3603 / 643

Let's proceed to step 4:
When dividing 3603 by 643, we get 5 with a remainder of 388.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 3215 from 3603 leaves us with 388.
Take the next digit (3) from the dividend and append it to 388, then repeat: 3883 / 643

Going ahead to step 5:
When dividing 3883 by 643, we get 6 with a remainder of 25.
The next digit of our result is 6. 
Result so far: 56.0
If we subtract 3858 from 3883, we get 25.
Grab the next digit (6) from the dividend, add it to 25, then carry on: 256 / 643

Going ahead to step 6:
When dividing 256 by 643, we get 0 with a remainder of 256.
Record the quotient 0 as the next digit in the result. 
Result so far: 560.0
Subtracting 0 from 256 leaves us with 256.
Bring next digit (9) of the dividend behind the 256 and repeat the process: 2569 / 643

Let's proceed to step 7:
2569 divided by 643 is 3 with a remainder of 640.
Write down 3 as next digit of the result. 
Result so far: 5603.0
Deduct 1929 from 2569 and we're left with 640.
Grab the next digit (0) from the dividend, add it to 640, then carry on: 6400 / 643

Going ahead to step 8:
When dividing 6400 by 643, we get 9 with a remainder of 613.
Record the quotient 9 as the next digit in the result. 
Result so far: 56039.0
If we subtract 5787 from 6400, we get 613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6130, and continue the process.

Moving on to step 9:
If we divide 6130 by 643, we get 9 and a remainder of 343.
Use 9 as the next digit of our solution. 
Result so far: 56039.9
The remainder is 343 after subtracting 5787 from 6130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Advancing to step 10:
3430 divided by 643 is 5 with a remainder of 215.
Put 5 as the next digit of the answer. 
Result so far: 56039.95
The remainder is 215 after subtracting 3215 from 3430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Step 11:
The number 643 fits into 2150 3 times, leaving a remainder of 221.
Record the quotient 3 as the next digit in the result. 
Result so far: 56039.953
Deduct 1929 from 2150 and we're left with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Going ahead to step 12:
2210 divided by 643 is 3 with a remainder of 281.
Use 3 as the next digit of our solution. 
Result so far: 56039.9533
The remainder is 281 after subtracting 1929 from 2210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

The final outcome is 56039.9533, with a leftover of 0.00281.