Let's divide 43228973 by 561
The aim is to understand the frequency of 561 in 43228973.

Step 1:
The number 561 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 561

On to step 2:
43 divided by 561 is 0 with a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Fetch the next digit (2) from the dividend, attach it to 43 and continue: 432 / 561

On to step 3:
561 goes into 432 0 times with a remainder of 432.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 432, we end up with 432.
Grab the next digit (2) from the dividend, add it to 432, then carry on: 4322 / 561

Let's proceed to step 4:
561 goes into 4322 7 times with a remainder of 395.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 3927 from 4322 leaves us with 395.
Grab the next digit (8) from the dividend, add it to 395, then carry on: 3958 / 561

On to step 5:
The number 561 fits into 3958 7 times, leaving a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
Subtracting 3927 from 3958 leaves us with 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 561

Let's proceed to step 6:
561 goes into 319 0 times with a remainder of 319.
Record the quotient 0 as the next digit in the result. 
Result so far: 770.0
Deduct 0 from 319 and we're left with 319.
Grab the next digit (7) from the dividend, add it to 319, then carry on: 3197 / 561

Let's proceed to step 7:
When dividing 3197 by 561, we get 5 with a remainder of 392.
The next digit of our result is 5. 
Result so far: 7705.0
Deduct 2805 from 3197 and we're left with 392.
Grab the next digit (3) from the dividend, add it to 392, then carry on: 3923 / 561

Step 8:
When dividing 3923 by 561, we get 6 with a remainder of 557.
Put 6 as the next digit of the answer. 
Result so far: 77056.0
If we take 3366 away from 3923, we end up with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Let's proceed to step 9:
561 can be fit into 5570 9 times, resulting in a remainder of 521.
The next digit of our result is 9. 
Result so far: 77056.9
Deduct 5049 from 5570 and we're left with 521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5210, and continue the process.

Let's proceed to step 10:
5210 divided by 561 is 9 with a remainder of 161.
Record the quotient 9 as the next digit in the result. 
Result so far: 77056.99
The remainder is 161 after subtracting 5049 from 5210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

After the division, we end up with 77056.99 and a remainder of 0.161.