Let's divide 89961561 by 263
The aim is to understand the frequency of 263 in 89961561.

Step 1:
When dividing 8 by 263, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 263

Moving on to step 2:
263 goes into 89 0 times with a remainder of 89.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 89, we end up with 89.
Grab the next digit (9) from the dividend, add it to 89, then carry on: 899 / 263

On to step 3:
If we divide 899 by 263, we get 3 and a remainder of 110.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 789 from 899, we get 110.
Take the next digit (6) from the dividend and append it to 110, then repeat: 1106 / 263

Going ahead to step 4:
263 goes into 1106 4 times with a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 34.0
The remainder is 54 after subtracting 1052 from 1106.
Bring next digit (1) of the dividend behind the 54 and repeat the process: 541 / 263

Step 5:
541 divided by 263 is 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 342.0
If we take 526 away from 541, we end up with 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 263

Advancing to step 6:
155 divided by 263 is 0 with a remainder of 155.
Record the quotient 0 as the next digit in the result. 
Result so far: 3420.0
Deduct 0 from 155 and we're left with 155.
Append the next digit (6) from the dividend to 155 and continue with: 1556 / 263

On to step 7:
263 goes into 1556 5 times with a remainder of 241.
The next digit of our result is 5. 
Result so far: 34205.0
Deduct 1315 from 1556 and we're left with 241.
Fetch the next digit (1) from the dividend, attach it to 241 and continue: 2411 / 263

Going ahead to step 8:
263 goes into 2411 9 times with a remainder of 44.
The number 9 becomes the next digit in our result. 
Result so far: 342059.0
If we subtract 2367 from 2411, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 9:
When dividing 440 by 263, we get 1 with a remainder of 177.
Use 1 as the next digit of our solution. 
Result so far: 342059.1
The remainder is 177 after subtracting 263 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Let's proceed to step 10:
If we divide 1770 by 263, we get 6 and a remainder of 192.
Record the quotient 6 as the next digit in the result. 
Result so far: 342059.16
If we take 1578 away from 1770, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Moving on to step 11:
263 goes into 1920 7 times with a remainder of 79.
The number 7 becomes the next digit in our result. 
Result so far: 342059.167
Subtract 1841 from 1920 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Let's proceed to step 12:
790 divided by 263 is 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 342059.1673
If we take 789 away from 790, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 13:
263 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 342059.1673
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 14:
263 can be fit into 100 0 times, resulting in a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 342059.1673
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 342059.1673, and the remainder is 1e-05.