We look at the division of 7291832 by 507 
The aim is to understand the frequency of 507 in 7291832.

Moving on to step 1:
The number 507 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 507

Step 2:
The number 507 fits into 72 0 times, leaving a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Include the next digit (9) from the dividend after 72, then repeat: 729 / 507

Advancing to step 3:
When dividing 729 by 507, we get 1 with a remainder of 222.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 222 after subtracting 507 from 729.
Bring next digit (1) of the dividend behind the 222 and repeat the process: 2221 / 507

Moving on to step 4:
507 can be fit into 2221 4 times, resulting in a remainder of 193.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 2028 from 2221 leaves us with 193.
Fetch the next digit (8) from the dividend, attach it to 193 and continue: 1938 / 507

Advancing to step 5:
When dividing 1938 by 507, we get 3 with a remainder of 417.
Write down 3 as next digit of the result. 
Result so far: 143.0
Subtract 1521 from 1938 to get 417.
Grab the next digit (3) from the dividend, add it to 417, then carry on: 4173 / 507

Advancing to step 6:
If we divide 4173 by 507, we get 8 and a remainder of 117.
Write down 8 as next digit of the result. 
Result so far: 1438.0
The remainder is 117 after subtracting 4056 from 4173.
Bring next digit (2) of the dividend behind the 117 and repeat the process: 1172 / 507

Step 7:
507 can be fit into 1172 2 times, resulting in a remainder of 158.
Write down 2 as next digit of the result. 
Result so far: 14382.0
If we take 1014 away from 1172, we end up with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Advancing to step 8:
If we divide 1580 by 507, we get 3 and a remainder of 59.
Record the quotient 3 as the next digit in the result. 
Result so far: 14382.3
The remainder is 59 after subtracting 1521 from 1580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 9:
If we divide 590 by 507, we get 1 and a remainder of 83.
Write down 1 as next digit of the result. 
Result so far: 14382.31
The remainder is 83 after subtracting 507 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Step 10:
830 divided by 507 is 1 with a remainder of 323.
Write down 1 as next digit of the result. 
Result so far: 14382.311
Deduct 507 from 830 and we're left with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

The final result is 14382.311 with a remainder of 0.0323.