39723858 ÷ 513 
We're looking to find how many times 513 goes into 39723858.

Let's proceed to step 1:
513 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 513

Moving on to step 2:
513 goes into 39 0 times with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Fetch the next digit (7) from the dividend, attach it to 39 and continue: 397 / 513

On to step 3:
If we divide 397 by 513, we get 0 and a remainder of 397.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 397, we get 397.
Include the next digit (2) from the dividend after 397, then repeat: 3972 / 513

Step 4:
When dividing 3972 by 513, we get 7 with a remainder of 381.
The next digit of our result is 7. 
Result so far: 7.0
If we take 3591 away from 3972, we end up with 381.
Append the next digit (3) from the dividend to 381 and continue with: 3813 / 513

Advancing to step 5:
513 goes into 3813 7 times with a remainder of 222.
Put 7 as the next digit of the answer. 
Result so far: 77.0
If we subtract 3591 from 3813, we get 222.
Append the next digit (8) from the dividend to 222 and continue with: 2228 / 513

On to step 6:
The number 513 fits into 2228 4 times, leaving a remainder of 176.
Use 4 as the next digit of our solution. 
Result so far: 774.0
Deduct 2052 from 2228 and we're left with 176.
Take the next digit (5) from the dividend and append it to 176, then repeat: 1765 / 513

Moving on to step 7:
The number 513 fits into 1765 3 times, leaving a remainder of 226.
The next digit of our result is 3. 
Result so far: 7743.0
Deduct 1539 from 1765 and we're left with 226.
Bring next digit (8) of the dividend behind the 226 and repeat the process: 2268 / 513

Going ahead to step 8:
If we divide 2268 by 513, we get 4 and a remainder of 216.
Write down 4 as next digit of the result. 
Result so far: 77434.0
Subtract 2052 from 2268 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Advancing to step 9:
513 can be fit into 2160 4 times, resulting in a remainder of 108.
Put 4 as the next digit of the answer. 
Result so far: 77434.4
The remainder is 108 after subtracting 2052 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 10:
1080 divided by 513 is 2 with a remainder of 54.
Record the quotient 2 as the next digit in the result. 
Result so far: 77434.42
Deduct 1026 from 1080 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 11:
513 goes into 540 1 times with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 77434.421
Deduct 513 from 540 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 12:
The number 513 fits into 270 0 times, leaving a remainder of 270.
Record the quotient 0 as the next digit in the result. 
Result so far: 77434.421
Subtract 0 from 270 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 13:
When dividing 2700 by 513, we get 5 with a remainder of 135.
The number 5 becomes the next digit in our result. 
Result so far: 77434.42105
The remainder is 135 after subtracting 2565 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Let's proceed to step 14:
513 goes into 1350 2 times with a remainder of 324.
Write down 2 as next digit of the result. 
Result so far: 77434.421052
If we take 1026 away from 1350, we end up with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 15:
513 goes into 3240 6 times with a remainder of 162.
Put 6 as the next digit of the answer. 
Result so far: 77434.4210526
Deduct 3078 from 3240 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Moving on to step 16:
When dividing 1620 by 513, we get 3 with a remainder of 81.
Write down 3 as next digit of the result. 
Result so far: 77434.42105263
Deduct 1539 from 1620 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

The final result is 77434.42105263 with a remainder of 8.1e-08.