We're dividing 39722561 by 513 
We want to divide 39722561 by 513.

Let's proceed to step 1:
3 divided by 513 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 513

Advancing to step 2:
39 divided by 513 is 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Fetch the next digit (7) from the dividend, attach it to 39 and continue: 397 / 513

On to step 3:
When dividing 397 by 513, we get 0 with a remainder of 397.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 397 leaves us with 397.
Append the next digit (2) from the dividend to 397 and continue with: 3972 / 513

On to step 4:
The number 513 fits into 3972 7 times, leaving a remainder of 381.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 3591 from 3972, we get 381.
Grab the next digit (2) from the dividend, add it to 381, then carry on: 3812 / 513

Going ahead to step 5:
513 can be fit into 3812 7 times, resulting in a remainder of 221.
Write down 7 as next digit of the result. 
Result so far: 77.0
Deduct 3591 from 3812 and we're left with 221.
Fetch the next digit (5) from the dividend, attach it to 221 and continue: 2215 / 513

Step 6:
2215 divided by 513 is 4 with a remainder of 163.
Write down 4 as next digit of the result. 
Result so far: 774.0
The remainder is 163 after subtracting 2052 from 2215.
Fetch the next digit (6) from the dividend, attach it to 163 and continue: 1636 / 513

Let's proceed to step 7:
513 goes into 1636 3 times with a remainder of 97.
The next digit of our result is 3. 
Result so far: 7743.0
If we subtract 1539 from 1636, we get 97.
Grab the next digit (1) from the dividend, add it to 97, then carry on: 971 / 513

Advancing to step 8:
When dividing 971 by 513, we get 1 with a remainder of 458.
Use 1 as the next digit of our solution. 
Result so far: 77431.0
The remainder is 458 after subtracting 513 from 971.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

On to step 9:
513 goes into 4580 8 times with a remainder of 476.
Use 8 as the next digit of our solution. 
Result so far: 77431.8
If we subtract 4104 from 4580, we get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Let's proceed to step 10:
513 can be fit into 4760 9 times, resulting in a remainder of 143.
Record the quotient 9 as the next digit in the result. 
Result so far: 77431.89
If we take 4617 away from 4760, we end up with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

On to step 11:
513 goes into 1430 2 times with a remainder of 404.
Write down 2 as next digit of the result. 
Result so far: 77431.892
If we subtract 1026 from 1430, we get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Going ahead to step 12:
4040 divided by 513 is 7 with a remainder of 449.
Write down 7 as next digit of the result. 
Result so far: 77431.8927
Subtract 3591 from 4040 to get 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4490, and continue the process.

On to step 13:
513 goes into 4490 8 times with a remainder of 386.
Write down 8 as next digit of the result. 
Result so far: 77431.89278
The remainder is 386 after subtracting 4104 from 4490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Let's proceed to step 14:
513 can be fit into 3860 7 times, resulting in a remainder of 269.
Use 7 as the next digit of our solution. 
Result so far: 77431.892787
If we subtract 3591 from 3860, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Going ahead to step 15:
513 can be fit into 2690 5 times, resulting in a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 77431.8927875
If we subtract 2565 from 2690, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 16:
513 goes into 1250 2 times with a remainder of 224.
The next digit of our result is 2. 
Result so far: 77431.89278752
If we subtract 1026 from 1250, we get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

The final result is 77431.89278752 with a remainder of 2.24e-07.