We look at the division of 59574122 by 615 
The aim is to understand the frequency of 615 in 59574122.

Step 1:
When dividing 5 by 615, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 615

Going ahead to step 2:
59 divided by 615 is 0 with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 59, we get 59.
Grab the next digit (5) from the dividend, add it to 59, then carry on: 595 / 615

On to step 3:
595 divided by 615 is 0 with a remainder of 595.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 595, we end up with 595.
Bring next digit (7) of the dividend behind the 595 and repeat the process: 5957 / 615

Going ahead to step 4:
5957 divided by 615 is 9 with a remainder of 422.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 5535 from 5957 leaves us with 422.
Fetch the next digit (4) from the dividend, attach it to 422 and continue: 4224 / 615

Step 5:
When dividing 4224 by 615, we get 6 with a remainder of 534.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
The remainder is 534 after subtracting 3690 from 4224.
Include the next digit (1) from the dividend after 534, then repeat: 5341 / 615

On to step 6:
The number 615 fits into 5341 8 times, leaving a remainder of 421.
Use 8 as the next digit of our solution. 
Result so far: 968.0
If we take 4920 away from 5341, we end up with 421.
Include the next digit (2) from the dividend after 421, then repeat: 4212 / 615

Step 7:
4212 divided by 615 is 6 with a remainder of 522.
The next digit of our result is 6. 
Result so far: 9686.0
If we take 3690 away from 4212, we end up with 522.
Append the next digit (2) from the dividend to 522 and continue with: 5222 / 615

Step 8:
The number 615 fits into 5222 8 times, leaving a remainder of 302.
The number 8 becomes the next digit in our result. 
Result so far: 96868.0
Subtract 4920 from 5222 to get 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Moving on to step 9:
The number 615 fits into 3020 4 times, leaving a remainder of 560.
Use 4 as the next digit of our solution. 
Result so far: 96868.4
If we take 2460 away from 3020, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 10:
615 goes into 5600 9 times with a remainder of 65.
The number 9 becomes the next digit in our result. 
Result so far: 96868.49
If we take 5535 away from 5600, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 11:
If we divide 650 by 615, we get 1 and a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 96868.491
If we subtract 615 from 650, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 12:
615 goes into 350 0 times with a remainder of 350.
Write down 0 as next digit of the result. 
Result so far: 96868.491
Subtracting 0 from 350 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 13:
The number 615 fits into 3500 5 times, leaving a remainder of 425.
Record the quotient 5 as the next digit in the result. 
Result so far: 96868.49105
Deduct 3075 from 3500 and we're left with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 14:
4250 divided by 615 is 6 with a remainder of 560.
Put 6 as the next digit of the answer. 
Result so far: 96868.491056
If we subtract 3690 from 4250, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 15:
The number 615 fits into 5600 9 times, leaving a remainder of 65.
The number 9 becomes the next digit in our result. 
Result so far: 96868.4910569
If we subtract 5535 from 5600, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 16:
650 divided by 615 is 1 with a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 96868.49105691
If we subtract 615 from 650, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 96868.49105691 and a remainder of 3.5e-08.