70845781 divided by 561 
The aim is to understand the frequency of 561 in 70845781.

Advancing to step 1:
7 divided by 561 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 561

Step 2:
561 can be fit into 70 0 times, resulting in a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Fetch the next digit (8) from the dividend, attach it to 70 and continue: 708 / 561

Moving on to step 3:
561 can be fit into 708 1 times, resulting in a remainder of 147.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 561 from 708 leaves us with 147.
Fetch the next digit (4) from the dividend, attach it to 147 and continue: 1474 / 561

Step 4:
The number 561 fits into 1474 2 times, leaving a remainder of 352.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 1122 from 1474, we get 352.
Grab the next digit (5) from the dividend, add it to 352, then carry on: 3525 / 561

On to step 5:
The number 561 fits into 3525 6 times, leaving a remainder of 159.
The next digit of our result is 6. 
Result so far: 126.0
The remainder is 159 after subtracting 3366 from 3525.
Bring next digit (7) of the dividend behind the 159 and repeat the process: 1597 / 561

Moving on to step 6:
The number 561 fits into 1597 2 times, leaving a remainder of 475.
Put 2 as the next digit of the answer. 
Result so far: 1262.0
If we subtract 1122 from 1597, we get 475.
Bring next digit (8) of the dividend behind the 475 and repeat the process: 4758 / 561

Step 7:
4758 divided by 561 is 8 with a remainder of 270.
Use 8 as the next digit of our solution. 
Result so far: 12628.0
If we subtract 4488 from 4758, we get 270.
Grab the next digit (1) from the dividend, add it to 270, then carry on: 2701 / 561

Advancing to step 8:
If we divide 2701 by 561, we get 4 and a remainder of 457.
The number 4 becomes the next digit in our result. 
Result so far: 126284.0
If we take 2244 away from 2701, we end up with 457.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

Step 9:
4570 divided by 561 is 8 with a remainder of 82.
The next digit of our result is 8. 
Result so far: 126284.8
If we take 4488 away from 4570, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 10:
When dividing 820 by 561, we get 1 with a remainder of 259.
Record the quotient 1 as the next digit in the result. 
Result so far: 126284.81
Subtracting 561 from 820 leaves us with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Going ahead to step 11:
When dividing 2590 by 561, we get 4 with a remainder of 346.
Write down 4 as next digit of the result. 
Result so far: 126284.814
If we take 2244 away from 2590, we end up with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 12:
When dividing 3460 by 561, we get 6 with a remainder of 94.
Put 6 as the next digit of the answer. 
Result so far: 126284.8146
If we subtract 3366 from 3460, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Let's proceed to step 13:
561 can be fit into 940 1 times, resulting in a remainder of 379.
Use 1 as the next digit of our solution. 
Result so far: 126284.81461
If we take 561 away from 940, we end up with 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Step 14:
The number 561 fits into 3790 6 times, leaving a remainder of 424.
The number 6 becomes the next digit in our result. 
Result so far: 126284.814616
If we take 3366 away from 3790, we end up with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Step 15:
4240 divided by 561 is 7 with a remainder of 313.
The next digit of our result is 7. 
Result so far: 126284.8146167
Subtracting 3927 from 4240 leaves us with 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Step 16:
When dividing 3130 by 561, we get 5 with a remainder of 325.
Record the quotient 5 as the next digit in the result. 
Result so far: 126284.81461675
If we subtract 2805 from 3130, we get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

The final outcome is 126284.81461675, with a leftover of 3.25e-07.