85901461 ÷ 515 
The aim is to understand the frequency of 515 in 85901461.

Step 1:
8 divided by 515 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 515

Going ahead to step 2:
When dividing 85 by 515, we get 0 with a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Fetch the next digit (9) from the dividend, attach it to 85 and continue: 859 / 515

Step 3:
If we divide 859 by 515, we get 1 and a remainder of 344.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 515 from 859 and we're left with 344.
Grab the next digit (0) from the dividend, add it to 344, then carry on: 3440 / 515

Advancing to step 4:
3440 divided by 515 is 6 with a remainder of 350.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Subtracting 3090 from 3440 leaves us with 350.
Include the next digit (1) from the dividend after 350, then repeat: 3501 / 515

Going ahead to step 5:
If we divide 3501 by 515, we get 6 and a remainder of 411.
Put 6 as the next digit of the answer. 
Result so far: 166.0
Subtracting 3090 from 3501 leaves us with 411.
Include the next digit (4) from the dividend after 411, then repeat: 4114 / 515

On to step 6:
If we divide 4114 by 515, we get 7 and a remainder of 509.
The next digit of our result is 7. 
Result so far: 1667.0
The remainder is 509 after subtracting 3605 from 4114.
Take the next digit (6) from the dividend and append it to 509, then repeat: 5096 / 515

Advancing to step 7:
515 can be fit into 5096 9 times, resulting in a remainder of 461.
The next digit of our result is 9. 
Result so far: 16679.0
The remainder is 461 after subtracting 4635 from 5096.
Grab the next digit (1) from the dividend, add it to 461, then carry on: 4611 / 515

Going ahead to step 8:
When dividing 4611 by 515, we get 8 with a remainder of 491.
The next digit of our result is 8. 
Result so far: 166798.0
Deduct 4120 from 4611 and we're left with 491.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4910, and continue the process.

Moving on to step 9:
When dividing 4910 by 515, we get 9 with a remainder of 275.
The next digit of our result is 9. 
Result so far: 166798.9
Deduct 4635 from 4910 and we're left with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Let's proceed to step 10:
2750 divided by 515 is 5 with a remainder of 175.
Put 5 as the next digit of the answer. 
Result so far: 166798.95
Subtract 2575 from 2750 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.

Going ahead to step 11:
If we divide 1750 by 515, we get 3 and a remainder of 205.
The number 3 becomes the next digit in our result. 
Result so far: 166798.953
If we subtract 1545 from 1750, we get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Advancing to step 12:
If we divide 2050 by 515, we get 3 and a remainder of 505.
Write down 3 as next digit of the result. 
Result so far: 166798.9533
If we subtract 1545 from 2050, we get 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

After the division, we end up with 166798.9533 and a remainder of 0.00505.