7776804 divided by 945 
The aim is to understand the frequency of 945 in 7776804.

On to step 1:
945 can be fit into 7 0 times, resulting in 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.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 945

Step 2:
If we divide 77 by 945, we get 0 and a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Grab the next digit (7) from the dividend, add it to 77, then carry on: 777 / 945

Step 3:
945 can be fit into 777 0 times, resulting in a remainder of 777.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 777 to get 777.
Bring next digit (6) of the dividend behind the 777 and repeat the process: 7776 / 945

Step 4:
945 can be fit into 7776 8 times, resulting in a remainder of 216.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 7560 away from 7776, we end up with 216.
Include the next digit (8) from the dividend after 216, then repeat: 2168 / 945

Step 5:
945 goes into 2168 2 times with a remainder of 278.
Write down 2 as next digit of the result. 
Result so far: 82.0
Subtracting 1890 from 2168 leaves us with 278.
Include the next digit (0) from the dividend after 278, then repeat: 2780 / 945

Moving on to step 6:
2780 divided by 945 is 2 with a remainder of 890.
Use 2 as the next digit of our solution. 
Result so far: 822.0
The remainder is 890 after subtracting 1890 from 2780.
Fetch the next digit (4) from the dividend, attach it to 890 and continue: 8904 / 945

Advancing to step 7:
If we divide 8904 by 945, we get 9 and a remainder of 399.
Record the quotient 9 as the next digit in the result. 
Result so far: 8229.0
Deduct 8505 from 8904 and we're left with 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Step 8:
When dividing 3990 by 945, we get 4 with a remainder of 210.
Use 4 as the next digit of our solution. 
Result so far: 8229.4
Subtract 3780 from 3990 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 9:
When dividing 2100 by 945, we get 2 with a remainder of 210.
Use 2 as the next digit of our solution. 
Result so far: 8229.42
Subtract 1890 from 2100 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 10:
If we divide 2100 by 945, we get 2 and a remainder of 210.
The next digit of our result is 2. 
Result so far: 8229.422
The remainder is 210 after subtracting 1890 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Our division results in 8229.422 with a remaining 0.021.