Let's divide 13880977 by 249
The aim is to understand the frequency of 249 in 13880977.

On to step 1:
249 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 249

Advancing to step 2:
When dividing 13 by 249, we get 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Bring next digit (8) of the dividend behind the 13 and repeat the process: 138 / 249

Step 3:
249 can be fit into 138 0 times, resulting in a remainder of 138.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 138 and we're left with 138.
Bring next digit (8) of the dividend behind the 138 and repeat the process: 1388 / 249

Step 4:
249 goes into 1388 5 times with a remainder of 143.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 143 after subtracting 1245 from 1388.
Take the next digit (0) from the dividend and append it to 143, then repeat: 1430 / 249

Let's proceed to step 5:
249 can be fit into 1430 5 times, resulting in a remainder of 185.
Put 5 as the next digit of the answer. 
Result so far: 55.0
If we take 1245 away from 1430, we end up with 185.
Fetch the next digit (9) from the dividend, attach it to 185 and continue: 1859 / 249

Going ahead to step 6:
The number 249 fits into 1859 7 times, leaving a remainder of 116.
Put 7 as the next digit of the answer. 
Result so far: 557.0
The remainder is 116 after subtracting 1743 from 1859.
Fetch the next digit (7) from the dividend, attach it to 116 and continue: 1167 / 249

Moving on to step 7:
The number 249 fits into 1167 4 times, leaving a remainder of 171.
Write down 4 as next digit of the result. 
Result so far: 5574.0
If we take 996 away from 1167, we end up with 171.
Bring next digit (7) of the dividend behind the 171 and repeat the process: 1717 / 249

On to step 8:
If we divide 1717 by 249, we get 6 and a remainder of 223.
Use 6 as the next digit of our solution. 
Result so far: 55746.0
If we take 1494 away from 1717, we end up with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Step 9:
249 goes into 2230 8 times with a remainder of 238.
The number 8 becomes the next digit in our result. 
Result so far: 55746.8
If we take 1992 away from 2230, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Let's proceed to step 10:
249 goes into 2380 9 times with a remainder of 139.
Record the quotient 9 as the next digit in the result. 
Result so far: 55746.89
Subtracting 2241 from 2380 leaves us with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Advancing to step 11:
249 can be fit into 1390 5 times, resulting in a remainder of 145.
Use 5 as the next digit of our solution. 
Result so far: 55746.895
Subtracting 1245 from 1390 leaves us 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.

Going ahead to step 12:
1450 divided by 249 is 5 with a remainder of 205.
The number 5 becomes the next digit in our result. 
Result so far: 55746.8955
If we take 1245 away from 1450, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

After the division, we end up with 55746.8955 and a remainder of 0.00205.