66508575 divided by 905 
The aim is to understand the frequency of 905 in 66508575.

Step 1:
The number 905 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 905

Going ahead to step 2:
The number 905 fits into 66 0 times, leaving a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Append the next digit (5) from the dividend to 66 and continue with: 665 / 905

Moving on to step 3:
When dividing 665 by 905, we get 0 with a remainder of 665.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 665 to get 665.
Take the next digit (0) from the dividend and append it to 665, then repeat: 6650 / 905

Step 4:
6650 divided by 905 is 7 with a remainder of 315.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 6335 from 6650 leaves us with 315.
Append the next digit (8) from the dividend to 315 and continue with: 3158 / 905

Advancing to step 5:
If we divide 3158 by 905, we get 3 and a remainder of 443.
The number 3 becomes the next digit in our result. 
Result so far: 73.0
Subtracting 2715 from 3158 leaves us with 443.
Include the next digit (5) from the dividend after 443, then repeat: 4435 / 905

Let's proceed to step 6:
905 can be fit into 4435 4 times, resulting in a remainder of 815.
The next digit of our result is 4. 
Result so far: 734.0
Deduct 3620 from 4435 and we're left with 815.
Bring next digit (7) of the dividend behind the 815 and repeat the process: 8157 / 905

Advancing to step 7:
905 can be fit into 8157 9 times, resulting in a remainder of 12.
Write down 9 as next digit of the result. 
Result so far: 7349.0
Subtract 8145 from 8157 to get 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 905

On to step 8:
When dividing 125 by 905, we get 0 with a remainder of 125.
Use 0 as the next digit of our solution. 
Result so far: 73490.0
Subtracting 0 from 125 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Moving on to step 9:
The number 905 fits into 1250 1 times, leaving a remainder of 345.
Write down 1 as next digit of the result. 
Result so far: 73490.1
If we take 905 away from 1250, we end up with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Step 10:
The number 905 fits into 3450 3 times, leaving a remainder of 735.
Write down 3 as next digit of the result. 
Result so far: 73490.13
Deduct 2715 from 3450 and we're left with 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

Moving on to step 11:
905 can be fit into 7350 8 times, resulting in a remainder of 110.
The number 8 becomes the next digit in our result. 
Result so far: 73490.138
Subtract 7240 from 7350 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 12:
When dividing 1100 by 905, we get 1 with a remainder of 195.
Record the quotient 1 as the next digit in the result. 
Result so far: 73490.1381
Deduct 905 from 1100 and we're left with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Let's proceed to step 13:
If we divide 1950 by 905, we get 2 and a remainder of 140.
Record the quotient 2 as the next digit in the result. 
Result so far: 73490.13812
If we take 1810 away from 1950, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 14:
When dividing 1400 by 905, we get 1 with a remainder of 495.
The number 1 becomes the next digit in our result. 
Result so far: 73490.138121
The remainder is 495 after subtracting 905 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Going ahead to step 15:
The number 905 fits into 4950 5 times, leaving a remainder of 425.
Write down 5 as next digit of the result. 
Result so far: 73490.1381215
If we take 4525 away from 4950, we end up 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.

Step 16:
If we divide 4250 by 905, we get 4 and a remainder of 630.
Put 4 as the next digit of the answer. 
Result so far: 73490.13812154
If we subtract 3620 from 4250, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

The final result is 73490.13812154 with a remainder of 6.3e-07.