We divide 72664366 by 615
The aim is to understand the frequency of 615 in 72664366.

On to step 1:
615 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 615

Let's proceed to step 2:
If we divide 72 by 615, we get 0 and a remainder of 72.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Fetch the next digit (6) from the dividend, attach it to 72 and continue: 726 / 615

On to step 3:
615 goes into 726 1 times with a remainder of 111.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 615 from 726, we get 111.
Take the next digit (6) from the dividend and append it to 111, then repeat: 1116 / 615

Let's proceed to step 4:
1116 divided by 615 is 1 with a remainder of 501.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 501 after subtracting 615 from 1116.
Grab the next digit (4) from the dividend, add it to 501, then carry on: 5014 / 615

Advancing to step 5:
615 can be fit into 5014 8 times, resulting in a remainder of 94.
The next digit of our result is 8. 
Result so far: 118.0
The remainder is 94 after subtracting 4920 from 5014.
Include the next digit (3) from the dividend after 94, then repeat: 943 / 615

Going ahead to step 6:
If we divide 943 by 615, we get 1 and a remainder of 328.
The next digit of our result is 1. 
Result so far: 1181.0
Subtract 615 from 943 to get 328.
Append the next digit (6) from the dividend to 328 and continue with: 3286 / 615

Let's proceed to step 7:
If we divide 3286 by 615, we get 5 and a remainder of 211.
Use 5 as the next digit of our solution. 
Result so far: 11815.0
Deduct 3075 from 3286 and we're left with 211.
Take the next digit (6) from the dividend and append it to 211, then repeat: 2116 / 615

On to step 8:
The number 615 fits into 2116 3 times, leaving a remainder of 271.
Put 3 as the next digit of the answer. 
Result so far: 118153.0
Subtract 1845 from 2116 to get 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Let's proceed to step 9:
When dividing 2710 by 615, we get 4 with a remainder of 250.
Write down 4 as next digit of the result. 
Result so far: 118153.4
If we subtract 2460 from 2710, we 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.

Moving on to step 10:
When dividing 2500 by 615, we get 4 with a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 118153.44
If we take 2460 away from 2500, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 118153.44 with a remaining 0.04.