43963747 divided by 507 
The aim is to understand the frequency of 507 in 43963747.

Step 1:
If we divide 4 by 507, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 507

Advancing to step 2:
The number 507 fits into 43 0 times, leaving a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Bring next digit (9) of the dividend behind the 43 and repeat the process: 439 / 507

Step 3:
507 can be fit into 439 0 times, resulting in a remainder of 439.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 439, we get 439.
Bring next digit (6) of the dividend behind the 439 and repeat the process: 4396 / 507

Moving on to step 4:
507 can be fit into 4396 8 times, resulting in a remainder of 340.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 4056 from 4396 to get 340.
Fetch the next digit (3) from the dividend, attach it to 340 and continue: 3403 / 507

Going ahead to step 5:
When dividing 3403 by 507, we get 6 with a remainder of 361.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
Deduct 3042 from 3403 and we're left with 361.
Fetch the next digit (7) from the dividend, attach it to 361 and continue: 3617 / 507

Step 6:
The number 507 fits into 3617 7 times, leaving a remainder of 68.
Record the quotient 7 as the next digit in the result. 
Result so far: 867.0
If we subtract 3549 from 3617, we get 68.
Include the next digit (4) from the dividend after 68, then repeat: 684 / 507

Let's proceed to step 7:
684 divided by 507 is 1 with a remainder of 177.
Write down 1 as next digit of the result. 
Result so far: 8671.0
If we subtract 507 from 684, we get 177.
Bring next digit (7) of the dividend behind the 177 and repeat the process: 1777 / 507

On to step 8:
507 can be fit into 1777 3 times, resulting in a remainder of 256.
Write down 3 as next digit of the result. 
Result so far: 86713.0
Subtracting 1521 from 1777 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

On to step 9:
2560 divided by 507 is 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 86713.5
Deduct 2535 from 2560 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 10:
When dividing 250 by 507, we get 0 with a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 86713.5
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 11:
507 goes into 2500 4 times with a remainder of 472.
The next digit of our result is 4. 
Result so far: 86713.504
Deduct 2028 from 2500 and we're left with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Moving on to step 12:
507 goes into 4720 9 times with a remainder of 157.
Use 9 as the next digit of our solution. 
Result so far: 86713.5049
Deduct 4563 from 4720 and we're left with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Advancing to step 13:
507 can be fit into 1570 3 times, resulting in a remainder of 49.
The next digit of our result is 3. 
Result so far: 86713.50493
If we subtract 1521 from 1570, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 14:
507 can be fit into 490 0 times, resulting in a remainder of 490.
Record the quotient 0 as the next digit in the result. 
Result so far: 86713.50493
If we take 0 away from 490, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Going ahead to step 15:
507 goes into 4900 9 times with a remainder of 337.
The number 9 becomes the next digit in our result. 
Result so far: 86713.5049309
Deduct 4563 from 4900 and we're left with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

On to step 16:
507 can be fit into 3370 6 times, resulting in a remainder of 328.
Record the quotient 6 as the next digit in the result. 
Result so far: 86713.50493096
If we take 3042 away from 3370, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

In conclusion, the division gives 86713.50493096 with a balance of 3.28e-07.