We're dividing 75712621 by 845 
The aim is to understand the frequency of 845 in 75712621.

Moving on to step 1:
The number 845 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 845

Let's proceed to step 2:
845 goes into 75 0 times with a remainder of 75.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Append the next digit (7) from the dividend to 75 and continue with: 757 / 845

Going ahead to step 3:
If we divide 757 by 845, we get 0 and a remainder of 757.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 757 and we're left with 757.
Fetch the next digit (1) from the dividend, attach it to 757 and continue: 7571 / 845

On to step 4:
If we divide 7571 by 845, we get 8 and a remainder of 811.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 6760 from 7571 leaves us with 811.
Grab the next digit (2) from the dividend, add it to 811, then carry on: 8112 / 845

Going ahead to step 5:
8112 divided by 845 is 9 with a remainder of 507.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
If we subtract 7605 from 8112, we get 507.
Include the next digit (6) from the dividend after 507, then repeat: 5076 / 845

Advancing to step 6:
5076 divided by 845 is 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 896.0
If we take 5070 away from 5076, we end up with 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 845

Going ahead to step 7:
When dividing 62 by 845, we get 0 with a remainder of 62.
The next digit of our result is 0. 
Result so far: 8960.0
If we take 0 away from 62, we end up with 62.
Bring next digit (1) of the dividend behind the 62 and repeat the process: 621 / 845

Step 8:
The number 845 fits into 621 0 times, leaving a remainder of 621.
The next digit of our result is 0. 
Result so far: 89600.0
Subtract 0 from 621 to get 621.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6210, and continue the process.

Moving on to step 9:
If we divide 6210 by 845, we get 7 and a remainder of 295.
Use 7 as the next digit of our solution. 
Result so far: 89600.7
The remainder is 295 after subtracting 5915 from 6210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Moving on to step 10:
If we divide 2950 by 845, we get 3 and a remainder of 415.
Use 3 as the next digit of our solution. 
Result so far: 89600.73
Subtracting 2535 from 2950 leaves us with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Going ahead to step 11:
The number 845 fits into 4150 4 times, leaving a remainder of 770.
The next digit of our result is 4. 
Result so far: 89600.734
If we take 3380 away from 4150, we end up with 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7700, and continue the process.

Let's proceed to step 12:
845 can be fit into 7700 9 times, resulting in a remainder of 95.
Put 9 as the next digit of the answer. 
Result so far: 89600.7349
If we subtract 7605 from 7700, we get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 13:
950 divided by 845 is 1 with a remainder of 105.
The next digit of our result is 1. 
Result so far: 89600.73491
Deduct 845 from 950 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 14:
When dividing 1050 by 845, we get 1 with a remainder of 205.
The next digit of our result is 1. 
Result so far: 89600.734911
Subtracting 845 from 1050 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Our division results in 89600.734911 with a remaining 2.05e-05.