We're dividing 45739747 by 561 
The aim is to understand the frequency of 561 in 45739747.

Moving on to step 1:
If we divide 4 by 561, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 561

Step 2:
561 can be fit into 45 0 times, resulting in a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Grab the next digit (7) from the dividend, add it to 45, then carry on: 457 / 561

On to step 3:
561 goes into 457 0 times with a remainder of 457.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 457, we get 457.
Take the next digit (3) from the dividend and append it to 457, then repeat: 4573 / 561

Moving on to step 4:
If we divide 4573 by 561, we get 8 and a remainder of 85.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 4488 away from 4573, we end up with 85.
Append the next digit (9) from the dividend to 85 and continue with: 859 / 561

Going ahead to step 5:
561 goes into 859 1 times with a remainder of 298.
Put 1 as the next digit of the answer. 
Result so far: 81.0
Deduct 561 from 859 and we're left with 298.
Append the next digit (7) from the dividend to 298 and continue with: 2987 / 561

On to step 6:
561 can be fit into 2987 5 times, resulting in a remainder of 182.
The next digit of our result is 5. 
Result so far: 815.0
Subtract 2805 from 2987 to get 182.
Fetch the next digit (4) from the dividend, attach it to 182 and continue: 1824 / 561

Step 7:
561 can be fit into 1824 3 times, resulting in a remainder of 141.
Use 3 as the next digit of our solution. 
Result so far: 8153.0
Subtracting 1683 from 1824 leaves us with 141.
Take the next digit (7) from the dividend and append it to 141, then repeat: 1417 / 561

Advancing to step 8:
561 can be fit into 1417 2 times, resulting in a remainder of 295.
Write down 2 as next digit of the result. 
Result so far: 81532.0
Subtracting 1122 from 1417 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Moving on to step 9:
If we divide 2950 by 561, we get 5 and a remainder of 145.
Put 5 as the next digit of the answer. 
Result so far: 81532.5
If we take 2805 away from 2950, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 10:
561 goes into 1450 2 times with a remainder of 328.
Use 2 as the next digit of our solution. 
Result so far: 81532.52
If we subtract 1122 from 1450, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 11:
When dividing 3280 by 561, we get 5 with a remainder of 475.
Use 5 as the next digit of our solution. 
Result so far: 81532.525
The remainder is 475 after subtracting 2805 from 3280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Moving on to step 12:
4750 divided by 561 is 8 with a remainder of 262.
Record the quotient 8 as the next digit in the result. 
Result so far: 81532.5258
The remainder is 262 after subtracting 4488 from 4750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Let's proceed to step 13:
If we divide 2620 by 561, we get 4 and a remainder of 376.
Use 4 as the next digit of our solution. 
Result so far: 81532.52584
Subtracting 2244 from 2620 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Advancing to step 14:
3760 divided by 561 is 6 with a remainder of 394.
Use 6 as the next digit of our solution. 
Result so far: 81532.525846
Subtract 3366 from 3760 to get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Going ahead to step 15:
If we divide 3940 by 561, we get 7 and a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 81532.5258467
If we take 3927 away from 3940, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 16:
561 can be fit into 130 0 times, resulting in a remainder of 130.
Write down 0 as next digit of the result. 
Result so far: 81532.5258467
The remainder is 130 after subtracting 0 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

The final outcome is 81532.5258467, with a leftover of 1.3e-07.