We divide 13343954 by 561
The aim is to understand the frequency of 561 in 13343954.

On to step 1:
If we divide 1 by 561, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 561

Let's proceed to step 2:
When dividing 13 by 561, we get 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 561

Step 3:
561 can be fit into 133 0 times, resulting in a remainder of 133.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 133, we end up with 133.
Bring next digit (4) of the dividend behind the 133 and repeat the process: 1334 / 561

Step 4:
If we divide 1334 by 561, we get 2 and a remainder of 212.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1122 away from 1334, we end up with 212.
Fetch the next digit (3) from the dividend, attach it to 212 and continue: 2123 / 561

On to step 5:
561 can be fit into 2123 3 times, resulting in a remainder of 440.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we take 1683 away from 2123, we end up with 440.
Bring next digit (9) of the dividend behind the 440 and repeat the process: 4409 / 561

On to step 6:
When dividing 4409 by 561, we get 7 with a remainder of 482.
Put 7 as the next digit of the answer. 
Result so far: 237.0
Subtracting 3927 from 4409 leaves us with 482.
Grab the next digit (5) from the dividend, add it to 482, then carry on: 4825 / 561

Moving on to step 7:
When dividing 4825 by 561, we get 8 with a remainder of 337.
Record the quotient 8 as the next digit in the result. 
Result so far: 2378.0
If we take 4488 away from 4825, we end up with 337.
Append the next digit (4) from the dividend to 337 and continue with: 3374 / 561

Step 8:
When dividing 3374 by 561, we get 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 23786.0
If we subtract 3366 from 3374, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
561 can be fit into 80 0 times, resulting in a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 23786.0
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 10:
561 can be fit into 800 1 times, resulting in a remainder of 239.
The next digit of our result is 1. 
Result so far: 23786.01
Subtract 561 from 800 to get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Let's proceed to step 11:
2390 divided by 561 is 4 with a remainder of 146.
Put 4 as the next digit of the answer. 
Result so far: 23786.014
Subtract 2244 from 2390 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

On to step 12:
561 can be fit into 1460 2 times, resulting in a remainder of 338.
Put 2 as the next digit of the answer. 
Result so far: 23786.0142
If we take 1122 away from 1460, we end up with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Step 13:
If we divide 3380 by 561, we get 6 and a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 23786.01426
Subtracting 3366 from 3380 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 14:
If we divide 140 by 561, we get 0 and a remainder of 140.
Write down 0 as next digit of the result. 
Result so far: 23786.01426
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 15:
If we divide 1400 by 561, we get 2 and a remainder of 278.
The next digit of our result is 2. 
Result so far: 23786.0142602
Deduct 1122 from 1400 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Advancing to step 16:
The number 561 fits into 2780 4 times, leaving a remainder of 536.
Record the quotient 4 as the next digit in the result. 
Result so far: 23786.01426024
Subtract 2244 from 2780 to get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Our division results in 23786.01426024 with a remaining 5.36e-07.