We're dividing 40077699 by 561 
The aim is to understand the frequency of 561 in 40077699.

Advancing to step 1:
The number 561 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 561

Going ahead to step 2:
The number 561 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Fetch the next digit (0) from the dividend, attach it to 40 and continue: 400 / 561

Going ahead to step 3:
When dividing 400 by 561, we get 0 with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 400, we end up with 400.
Bring next digit (7) of the dividend behind the 400 and repeat the process: 4007 / 561

Advancing to step 4:
561 can be fit into 4007 7 times, resulting in a remainder of 80.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 3927 from 4007 to get 80.
Take the next digit (7) from the dividend and append it to 80, then repeat: 807 / 561

Moving on to step 5:
If we divide 807 by 561, we get 1 and a remainder of 246.
Write down 1 as next digit of the result. 
Result so far: 71.0
If we subtract 561 from 807, we get 246.
Include the next digit (6) from the dividend after 246, then repeat: 2466 / 561

Going ahead to step 6:
561 goes into 2466 4 times with a remainder of 222.
The next digit of our result is 4. 
Result so far: 714.0
Deduct 2244 from 2466 and we're left with 222.
Include the next digit (9) from the dividend after 222, then repeat: 2229 / 561

Moving on to step 7:
2229 divided by 561 is 3 with a remainder of 546.
Record the quotient 3 as the next digit in the result. 
Result so far: 7143.0
If we take 1683 away from 2229, we end up with 546.
Grab the next digit (9) from the dividend, add it to 546, then carry on: 5469 / 561

Step 8:
The number 561 fits into 5469 9 times, leaving a remainder of 420.
The next digit of our result is 9. 
Result so far: 71439.0
Subtract 5049 from 5469 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 9:
561 can be fit into 4200 7 times, resulting in a remainder of 273.
The next digit of our result is 7. 
Result so far: 71439.7
If we subtract 3927 from 4200, we get 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

Going ahead to step 10:
2730 divided by 561 is 4 with a remainder of 486.
The next digit of our result is 4. 
Result so far: 71439.74
If we subtract 2244 from 2730, we get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Moving on to step 11:
When dividing 4860 by 561, we get 8 with a remainder of 372.
The number 8 becomes the next digit in our result. 
Result so far: 71439.748
Deduct 4488 from 4860 and we're left with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Moving on to step 12:
When dividing 3720 by 561, we get 6 with a remainder of 354.
The next digit of our result is 6. 
Result so far: 71439.7486
If we take 3366 away from 3720, we end up with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Advancing to step 13:
561 can be fit into 3540 6 times, resulting in a remainder of 174.
The number 6 becomes the next digit in our result. 
Result so far: 71439.74866
If we subtract 3366 from 3540, we get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Our division results in 71439.74866 with a remaining 0.000174.