We're dividing 78911916 by 507 
The aim is to understand the frequency of 507 in 78911916.

Step 1:
If we divide 7 by 507, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 507

Going ahead to step 2:
If we divide 78 by 507, we get 0 and a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Include the next digit (9) from the dividend after 78, then repeat: 789 / 507

Step 3:
507 can be fit into 789 1 times, resulting in a remainder of 282.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 507 from 789 and we're left with 282.
Grab the next digit (1) from the dividend, add it to 282, then carry on: 2821 / 507

Let's proceed to step 4:
507 can be fit into 2821 5 times, resulting in a remainder of 286.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
The remainder is 286 after subtracting 2535 from 2821.
Take the next digit (1) from the dividend and append it to 286, then repeat: 2861 / 507

Let's proceed to step 5:
When dividing 2861 by 507, we get 5 with a remainder of 326.
The next digit of our result is 5. 
Result so far: 155.0
If we take 2535 away from 2861, we end up with 326.
Bring next digit (9) of the dividend behind the 326 and repeat the process: 3269 / 507

On to step 6:
507 goes into 3269 6 times with a remainder of 227.
Record the quotient 6 as the next digit in the result. 
Result so far: 1556.0
Subtracting 3042 from 3269 leaves us with 227.
Grab the next digit (1) from the dividend, add it to 227, then carry on: 2271 / 507

Step 7:
When dividing 2271 by 507, we get 4 with a remainder of 243.
Record the quotient 4 as the next digit in the result. 
Result so far: 15564.0
If we take 2028 away from 2271, we end up with 243.
Take the next digit (6) from the dividend and append it to 243, then repeat: 2436 / 507

On to step 8:
507 goes into 2436 4 times with a remainder of 408.
The next digit of our result is 4. 
Result so far: 155644.0
If we subtract 2028 from 2436, we get 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Step 9:
507 goes into 4080 8 times with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 155644.8
Subtract 4056 from 4080 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
507 can be fit into 240 0 times, resulting in a remainder of 240.
Write down 0 as next digit of the result. 
Result so far: 155644.8
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 11:
507 goes into 2400 4 times with a remainder of 372.
Write down 4 as next digit of the result. 
Result so far: 155644.804
Subtracting 2028 from 2400 leaves us with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Step 12:
The number 507 fits into 3720 7 times, leaving a remainder of 171.
Use 7 as the next digit of our solution. 
Result so far: 155644.8047
If we subtract 3549 from 3720, we get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Step 13:
507 can be fit into 1710 3 times, resulting in a remainder of 189.
Write down 3 as next digit of the result. 
Result so far: 155644.80473
Deduct 1521 from 1710 and we're left with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

On to step 14:
When dividing 1890 by 507, we get 3 with a remainder of 369.
Record the quotient 3 as the next digit in the result. 
Result so far: 155644.804733
The remainder is 369 after subtracting 1521 from 1890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

In conclusion, the division gives 155644.804733 with a balance of 3.69e-05.