We're dividing 51487641 by 965 
The aim is to understand the frequency of 965 in 51487641.

Moving on to step 1:
When dividing 5 by 965, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 965

Let's proceed to step 2:
If we divide 51 by 965, we get 0 and a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Fetch the next digit (4) from the dividend, attach it to 51 and continue: 514 / 965

On to step 3:
965 can be fit into 514 0 times, resulting in a remainder of 514.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 514 and we're left with 514.
Take the next digit (8) from the dividend and append it to 514, then repeat: 5148 / 965

On to step 4:
When dividing 5148 by 965, we get 5 with a remainder of 323.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 4825 from 5148 and we're left with 323.
Include the next digit (7) from the dividend after 323, then repeat: 3237 / 965

Moving on to step 5:
The number 965 fits into 3237 3 times, leaving a remainder of 342.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
Subtract 2895 from 3237 to get 342.
Include the next digit (6) from the dividend after 342, then repeat: 3426 / 965

Advancing to step 6:
When dividing 3426 by 965, we get 3 with a remainder of 531.
The next digit of our result is 3. 
Result so far: 533.0
If we take 2895 away from 3426, we end up with 531.
Append the next digit (4) from the dividend to 531 and continue with: 5314 / 965

On to step 7:
If we divide 5314 by 965, we get 5 and a remainder of 489.
The next digit of our result is 5. 
Result so far: 5335.0
Subtracting 4825 from 5314 leaves us with 489.
Bring next digit (1) of the dividend behind the 489 and repeat the process: 4891 / 965

Advancing to step 8:
4891 divided by 965 is 5 with a remainder of 66.
The next digit of our result is 5. 
Result so far: 53355.0
Deduct 4825 from 4891 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 9:
965 can be fit into 660 0 times, resulting in a remainder of 660.
Write down 0 as next digit of the result. 
Result so far: 53355.0
Subtract 0 from 660 to get 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Moving on to step 10:
If we divide 6600 by 965, we get 6 and a remainder of 810.
Use 6 as the next digit of our solution. 
Result so far: 53355.06
If we take 5790 away from 6600, we end up with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Moving on to step 11:
8100 divided by 965 is 8 with a remainder of 380.
Use 8 as the next digit of our solution. 
Result so far: 53355.068
If we subtract 7720 from 8100, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 12:
965 goes into 3800 3 times with a remainder of 905.
The next digit of our result is 3. 
Result so far: 53355.0683
If we take 2895 away from 3800, we end up with 905.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9050, and continue the process.

Advancing to step 13:
965 can be fit into 9050 9 times, resulting in a remainder of 365.
Use 9 as the next digit of our solution. 
Result so far: 53355.06839
Subtract 8685 from 9050 to get 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Moving on to step 14:
When dividing 3650 by 965, we get 3 with a remainder of 755.
Record the quotient 3 as the next digit in the result. 
Result so far: 53355.068393
If we subtract 2895 from 3650, we get 755.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7550, and continue the process.

Moving on to step 15:
965 can be fit into 7550 7 times, resulting in a remainder of 795.
The number 7 becomes the next digit in our result. 
Result so far: 53355.0683937
Subtract 6755 from 7550 to get 795.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7950, and continue the process.

Step 16:
7950 divided by 965 is 8 with a remainder of 230.
Use 8 as the next digit of our solution. 
Result so far: 53355.06839378
Subtracting 7720 from 7950 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Our division results in 53355.06839378 with a remaining 2.3e-07.