37759403 ÷ 561 
The aim is to understand the frequency of 561 in 37759403.

Moving on to step 1:
If we divide 3 by 561, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 561

Advancing to step 2:
561 goes into 37 0 times with a remainder of 37.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Include the next digit (7) from the dividend after 37, then repeat: 377 / 561

On to step 3:
The number 561 fits into 377 0 times, leaving a remainder of 377.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 377 after subtracting 0 from 377.
Append the next digit (5) from the dividend to 377 and continue with: 3775 / 561

Going ahead to step 4:
If we divide 3775 by 561, we get 6 and a remainder of 409.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 3366 from 3775 and we're left with 409.
Bring next digit (9) of the dividend behind the 409 and repeat the process: 4099 / 561

Moving on to step 5:
The number 561 fits into 4099 7 times, leaving a remainder of 172.
Write down 7 as next digit of the result. 
Result so far: 67.0
If we take 3927 away from 4099, we end up with 172.
Append the next digit (4) from the dividend to 172 and continue with: 1724 / 561

Advancing to step 6:
561 goes into 1724 3 times with a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 673.0
If we take 1683 away from 1724, we end up with 41.
Take the next digit (0) from the dividend and append it to 41, then repeat: 410 / 561

Going ahead to step 7:
561 goes into 410 0 times with a remainder of 410.
Use 0 as the next digit of our solution. 
Result so far: 6730.0
Subtract 0 from 410 to get 410.
Bring next digit (3) of the dividend behind the 410 and repeat the process: 4103 / 561

Let's proceed to step 8:
4103 divided by 561 is 7 with a remainder of 176.
Use 7 as the next digit of our solution. 
Result so far: 67307.0
Subtracting 3927 from 4103 leaves us with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 9:
561 goes into 1760 3 times with a remainder of 77.
The number 3 becomes the next digit in our result. 
Result so far: 67307.3
If we subtract 1683 from 1760, we get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Let's proceed to step 10:
When dividing 770 by 561, we get 1 with a remainder of 209.
Use 1 as the next digit of our solution. 
Result so far: 67307.31
Subtracting 561 from 770 leaves us with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Moving on to step 11:
If we divide 2090 by 561, we get 3 and a remainder of 407.
Record the quotient 3 as the next digit in the result. 
Result so far: 67307.313
If we subtract 1683 from 2090, we get 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

Let's proceed to step 12:
561 goes into 4070 7 times with a remainder of 143.
Record the quotient 7 as the next digit in the result. 
Result so far: 67307.3137
Deduct 3927 from 4070 and we're left with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

On to step 13:
The number 561 fits into 1430 2 times, leaving a remainder of 308.
Write down 2 as next digit of the result. 
Result so far: 67307.31372
Deduct 1122 from 1430 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Moving on to step 14:
The number 561 fits into 3080 5 times, leaving a remainder of 275.
Put 5 as the next digit of the answer. 
Result so far: 67307.313725
Deduct 2805 from 3080 and we're left with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Let's proceed to step 15:
The number 561 fits into 2750 4 times, leaving a remainder of 506.
Use 4 as the next digit of our solution. 
Result so far: 67307.3137254
Subtract 2244 from 2750 to get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Going ahead to step 16:
5060 divided by 561 is 9 with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 67307.31372549
The remainder is 11 after subtracting 5049 from 5060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final outcome is 67307.31372549, with a leftover of 1.1e-08.