We look at the division of 91312502 by 724 
The aim is to understand the frequency of 724 in 91312502.

Going ahead to step 1:
The number 724 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 724

Going ahead to step 2:
When dividing 91 by 724, we get 0 with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Bring next digit (3) of the dividend behind the 91 and repeat the process: 913 / 724

Let's proceed to step 3:
913 divided by 724 is 1 with a remainder of 189.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 724 from 913 leaves us with 189.
Grab the next digit (1) from the dividend, add it to 189, then carry on: 1891 / 724

On to step 4:
When dividing 1891 by 724, we get 2 with a remainder of 443.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 1448 from 1891 leaves us with 443.
Take the next digit (2) from the dividend and append it to 443, then repeat: 4432 / 724

On to step 5:
724 can be fit into 4432 6 times, resulting in a remainder of 88.
Put 6 as the next digit of the answer. 
Result so far: 126.0
Subtract 4344 from 4432 to get 88.
Append the next digit (5) from the dividend to 88 and continue with: 885 / 724

Let's proceed to step 6:
724 goes into 885 1 times with a remainder of 161.
Record the quotient 1 as the next digit in the result. 
Result so far: 1261.0
Subtracting 724 from 885 leaves us with 161.
Take the next digit (0) from the dividend and append it to 161, then repeat: 1610 / 724

Going ahead to step 7:
724 goes into 1610 2 times with a remainder of 162.
The next digit of our result is 2. 
Result so far: 12612.0
If we take 1448 away from 1610, we end up with 162.
Grab the next digit (2) from the dividend, add it to 162, then carry on: 1622 / 724

On to step 8:
724 can be fit into 1622 2 times, resulting in a remainder of 174.
The number 2 becomes the next digit in our result. 
Result so far: 126122.0
The remainder is 174 after subtracting 1448 from 1622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

On to step 9:
724 can be fit into 1740 2 times, resulting in a remainder of 292.
Put 2 as the next digit of the answer. 
Result so far: 126122.2
Deduct 1448 from 1740 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Let's proceed to step 10:
724 goes into 2920 4 times with a remainder of 24.
The next digit of our result is 4. 
Result so far: 126122.24
If we take 2896 away from 2920, we end up with 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 11:
724 can be fit into 240 0 times, resulting in a remainder of 240.
Record the quotient 0 as the next digit in the result. 
Result so far: 126122.24
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.

Let's proceed to step 12:
If we divide 2400 by 724, we get 3 and a remainder of 228.
Use 3 as the next digit of our solution. 
Result so far: 126122.2403
If we take 2172 away from 2400, we end up with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Moving on to step 13:
The number 724 fits into 2280 3 times, leaving a remainder of 108.
Record the quotient 3 as the next digit in the result. 
Result so far: 126122.24033
If we take 2172 away from 2280, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The quotient of the division is 126122.24033, and the remainder is 0.000108.