50661487 ÷ 507 
The aim is to understand the frequency of 507 in 50661487.

Moving on to step 1:
5 divided by 507 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 507

Step 2:
If we divide 50 by 507, we get 0 and a remainder of 50.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Bring next digit (6) of the dividend behind the 50 and repeat the process: 506 / 507

On to step 3:
506 divided by 507 is 0 with a remainder of 506.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 506, we get 506.
Fetch the next digit (6) from the dividend, attach it to 506 and continue: 5066 / 507

Going ahead to step 4:
The number 507 fits into 5066 9 times, leaving a remainder of 503.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 4563 from 5066 leaves us with 503.
Take the next digit (1) from the dividend and append it to 503, then repeat: 5031 / 507

Going ahead to step 5:
The number 507 fits into 5031 9 times, leaving a remainder of 468.
Write down 9 as next digit of the result. 
Result so far: 99.0
Subtracting 4563 from 5031 leaves us with 468.
Grab the next digit (4) from the dividend, add it to 468, then carry on: 4684 / 507

On to step 6:
507 can be fit into 4684 9 times, resulting in a remainder of 121.
The number 9 becomes the next digit in our result. 
Result so far: 999.0
Subtracting 4563 from 4684 leaves us with 121.
Bring next digit (8) of the dividend behind the 121 and repeat the process: 1218 / 507

Step 7:
507 can be fit into 1218 2 times, resulting in a remainder of 204.
Record the quotient 2 as the next digit in the result. 
Result so far: 9992.0
If we take 1014 away from 1218, we end up with 204.
Grab the next digit (7) from the dividend, add it to 204, then carry on: 2047 / 507

Advancing to step 8:
507 can be fit into 2047 4 times, resulting in a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 99924.0
If we subtract 2028 from 2047, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 9:
When dividing 190 by 507, we get 0 with a remainder of 190.
The number 0 becomes the next digit in our result. 
Result so far: 99924.0
Subtracting 0 from 190 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 10:
507 can be fit into 1900 3 times, resulting in a remainder of 379.
The next digit of our result is 3. 
Result so far: 99924.03
If we take 1521 away from 1900, we end up with 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Moving on to step 11:
If we divide 3790 by 507, we get 7 and a remainder of 241.
The next digit of our result is 7. 
Result so far: 99924.037
If we take 3549 away from 3790, we end up with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Let's proceed to step 12:
507 can be fit into 2410 4 times, resulting in a remainder of 382.
Write down 4 as next digit of the result. 
Result so far: 99924.0374
If we take 2028 away from 2410, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Going ahead to step 13:
507 can be fit into 3820 7 times, resulting in a remainder of 271.
Write down 7 as next digit of the result. 
Result so far: 99924.03747
The remainder is 271 after subtracting 3549 from 3820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Advancing to step 14:
When dividing 2710 by 507, we get 5 with a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 99924.037475
Subtract 2535 from 2710 to get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Advancing to step 15:
If we divide 1750 by 507, we get 3 and a remainder of 229.
The number 3 becomes the next digit in our result. 
Result so far: 99924.0374753
Deduct 1521 from 1750 and we're left with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Advancing to step 16:
507 can be fit into 2290 4 times, resulting in a remainder of 262.
Put 4 as the next digit of the answer. 
Result so far: 99924.03747534
If we subtract 2028 from 2290, we get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

The final result is 99924.03747534 with a remainder of 2.62e-07.