Let's divide 51956893 by 261
The aim is to understand the frequency of 261 in 51956893.

Going ahead to step 1:
261 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 261

Step 2:
261 can be fit into 51 0 times, resulting in a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Fetch the next digit (9) from the dividend, attach it to 51 and continue: 519 / 261

Going ahead to step 3:
261 goes into 519 1 times with a remainder of 258.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 261 from 519 leaves us with 258.
Bring next digit (5) of the dividend behind the 258 and repeat the process: 2585 / 261

Advancing to step 4:
2585 divided by 261 is 9 with a remainder of 236.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Deduct 2349 from 2585 and we're left with 236.
Fetch the next digit (6) from the dividend, attach it to 236 and continue: 2366 / 261

Let's proceed to step 5:
If we divide 2366 by 261, we get 9 and a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 199.0
The remainder is 17 after subtracting 2349 from 2366.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 261

Advancing to step 6:
The number 261 fits into 178 0 times, leaving a remainder of 178.
The next digit of our result is 0. 
Result so far: 1990.0
If we take 0 away from 178, we end up with 178.
Fetch the next digit (9) from the dividend, attach it to 178 and continue: 1789 / 261

Step 7:
When dividing 1789 by 261, we get 6 with a remainder of 223.
Write down 6 as next digit of the result. 
Result so far: 19906.0
Subtract 1566 from 1789 to get 223.
Append the next digit (3) from the dividend to 223 and continue with: 2233 / 261

Let's proceed to step 8:
261 goes into 2233 8 times with a remainder of 145.
Use 8 as the next digit of our solution. 
Result so far: 199068.0
The remainder is 145 after subtracting 2088 from 2233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

On to step 9:
When dividing 1450 by 261, we get 5 with a remainder of 145.
The next digit of our result is 5. 
Result so far: 199068.5
Subtract 1305 from 1450 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 10:
The number 261 fits into 1450 5 times, leaving a remainder of 145.
Put 5 as the next digit of the answer. 
Result so far: 199068.55
Deduct 1305 from 1450 and we're left with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

The final result is 199068.55 with a remainder of 0.145.