45771577 divided by 987 
The aim is to understand the frequency of 987 in 45771577.

Step 1:
The number 987 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 987

Advancing to step 2:
The number 987 fits into 45 0 times, leaving a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 45 leaves us with 45.
Bring next digit (7) of the dividend behind the 45 and repeat the process: 457 / 987

Let's proceed to step 3:
If we divide 457 by 987, we get 0 and a remainder of 457.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 457 after subtracting 0 from 457.
Append the next digit (7) from the dividend to 457 and continue with: 4577 / 987

On to step 4:
If we divide 4577 by 987, we get 4 and a remainder of 629.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 3948 from 4577 and we're left with 629.
Append the next digit (1) from the dividend to 629 and continue with: 6291 / 987

Moving on to step 5:
6291 divided by 987 is 6 with a remainder of 369.
The next digit of our result is 6. 
Result so far: 46.0
The remainder is 369 after subtracting 5922 from 6291.
Fetch the next digit (5) from the dividend, attach it to 369 and continue: 3695 / 987

Step 6:
The number 987 fits into 3695 3 times, leaving a remainder of 734.
Write down 3 as next digit of the result. 
Result so far: 463.0
If we subtract 2961 from 3695, we get 734.
Bring next digit (7) of the dividend behind the 734 and repeat the process: 7347 / 987

Going ahead to step 7:
987 goes into 7347 7 times with a remainder of 438.
Use 7 as the next digit of our solution. 
Result so far: 4637.0
Subtract 6909 from 7347 to get 438.
Grab the next digit (7) from the dividend, add it to 438, then carry on: 4387 / 987

Step 8:
987 can be fit into 4387 4 times, resulting in a remainder of 439.
The number 4 becomes the next digit in our result. 
Result so far: 46374.0
If we take 3948 away from 4387, we end up with 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Moving on to step 9:
If we divide 4390 by 987, we get 4 and a remainder of 442.
Use 4 as the next digit of our solution. 
Result so far: 46374.4
If we subtract 3948 from 4390, we get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Advancing to step 10:
4420 divided by 987 is 4 with a remainder of 472.
Put 4 as the next digit of the answer. 
Result so far: 46374.44
The remainder is 472 after subtracting 3948 from 4420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

The final result is 46374.44 with a remainder of 0.472.