75507478 ÷ 845 
The aim is to understand the frequency of 845 in 75507478.

Step 1:
7 divided by 845 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 845

On to step 2:
845 can be fit into 75 0 times, resulting in a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 75 after subtracting 0 from 75.
Take the next digit (5) from the dividend and append it to 75, then repeat: 755 / 845

Step 3:
845 goes into 755 0 times with a remainder of 755.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 755, we get 755.
Take the next digit (0) from the dividend and append it to 755, then repeat: 7550 / 845

Let's proceed to step 4:
7550 divided by 845 is 8 with a remainder of 790.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 6760 away from 7550, we end up with 790.
Take the next digit (7) from the dividend and append it to 790, then repeat: 7907 / 845

Step 5:
7907 divided by 845 is 9 with a remainder of 302.
Use 9 as the next digit of our solution. 
Result so far: 89.0
Deduct 7605 from 7907 and we're left with 302.
Grab the next digit (4) from the dividend, add it to 302, then carry on: 3024 / 845

Going ahead to step 6:
If we divide 3024 by 845, we get 3 and a remainder of 489.
The number 3 becomes the next digit in our result. 
Result so far: 893.0
If we subtract 2535 from 3024, we get 489.
Include the next digit (7) from the dividend after 489, then repeat: 4897 / 845

Going ahead to step 7:
4897 divided by 845 is 5 with a remainder of 672.
The next digit of our result is 5. 
Result so far: 8935.0
The remainder is 672 after subtracting 4225 from 4897.
Take the next digit (8) from the dividend and append it to 672, then repeat: 6728 / 845

Let's proceed to step 8:
When dividing 6728 by 845, we get 7 with a remainder of 813.
The next digit of our result is 7. 
Result so far: 89357.0
Deduct 5915 from 6728 and we're left with 813.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8130, and continue the process.

Moving on to step 9:
If we divide 8130 by 845, we get 9 and a remainder of 525.
Write down 9 as next digit of the result. 
Result so far: 89357.9
The remainder is 525 after subtracting 7605 from 8130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Going ahead to step 10:
If we divide 5250 by 845, we get 6 and a remainder of 180.
Write down 6 as next digit of the result. 
Result so far: 89357.96
Subtract 5070 from 5250 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 11:
When dividing 1800 by 845, we get 2 with a remainder of 110.
Use 2 as the next digit of our solution. 
Result so far: 89357.962
Subtract 1690 from 1800 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.

Moving on to step 12:
845 can be fit into 1100 1 times, resulting in a remainder of 255.
Use 1 as the next digit of our solution. 
Result so far: 89357.9621
If we subtract 845 from 1100, we get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Let's proceed to step 13:
845 can be fit into 2550 3 times, resulting in a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 89357.96213
If we subtract 2535 from 2550, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 14:
When dividing 150 by 845, we get 0 with a remainder of 150.
The next digit of our result is 0. 
Result so far: 89357.96213
The remainder is 150 after subtracting 0 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 15:
If we divide 1500 by 845, we get 1 and a remainder of 655.
The number 1 becomes the next digit in our result. 
Result so far: 89357.9621301
Deduct 845 from 1500 and we're left with 655.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6550, and continue the process.

Step 16:
The number 845 fits into 6550 7 times, leaving a remainder of 635.
Record the quotient 7 as the next digit in the result. 
Result so far: 89357.96213017
Subtract 5915 from 6550 to get 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Our division results in 89357.96213017 with a remaining 6.35e-07.