39586490 ÷ 877 
The aim is to understand the frequency of 877 in 39586490.

Step 1:
3 divided by 877 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 877

Moving on to step 2:
39 divided by 877 is 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Fetch the next digit (5) from the dividend, attach it to 39 and continue: 395 / 877

Let's proceed to step 3:
877 can be fit into 395 0 times, resulting in a remainder of 395.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 395 leaves us with 395.
Grab the next digit (8) from the dividend, add it to 395, then carry on: 3958 / 877

Advancing to step 4:
3958 divided by 877 is 4 with a remainder of 450.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 3508 from 3958 leaves us with 450.
Take the next digit (6) from the dividend and append it to 450, then repeat: 4506 / 877

Step 5:
If we divide 4506 by 877, we get 5 and a remainder of 121.
The next digit of our result is 5. 
Result so far: 45.0
If we take 4385 away from 4506, we end up with 121.
Take the next digit (4) from the dividend and append it to 121, then repeat: 1214 / 877

Moving on to step 6:
1214 divided by 877 is 1 with a remainder of 337.
Use 1 as the next digit of our solution. 
Result so far: 451.0
Subtracting 877 from 1214 leaves us with 337.
Take the next digit (9) from the dividend and append it to 337, then repeat: 3379 / 877

Moving on to step 7:
When dividing 3379 by 877, we get 3 with a remainder of 748.
The number 3 becomes the next digit in our result. 
Result so far: 4513.0
If we take 2631 away from 3379, we end up with 748.
Grab the next digit (0) from the dividend, add it to 748, then carry on: 7480 / 877

On to step 8:
When dividing 7480 by 877, we get 8 with a remainder of 464.
The number 8 becomes the next digit in our result. 
Result so far: 45138.0
Deduct 7016 from 7480 and we're left with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Going ahead to step 9:
4640 divided by 877 is 5 with a remainder of 255.
The number 5 becomes the next digit in our result. 
Result so far: 45138.5
Deduct 4385 from 4640 and we're left with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Going ahead to step 10:
If we divide 2550 by 877, we get 2 and a remainder of 796.
The next digit of our result is 2. 
Result so far: 45138.52
The remainder is 796 after subtracting 1754 from 2550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7960, and continue the process.

Let's proceed to step 11:
7960 divided by 877 is 9 with a remainder of 67.
Put 9 as the next digit of the answer. 
Result so far: 45138.529
Subtract 7893 from 7960 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 12:
670 divided by 877 is 0 with a remainder of 670.
The next digit of our result is 0. 
Result so far: 45138.529
If we subtract 0 from 670, we get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Let's proceed to step 13:
877 can be fit into 6700 7 times, resulting in a remainder of 561.
Write down 7 as next digit of the result. 
Result so far: 45138.52907
If we take 6139 away from 6700, we end up with 561.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5610, and continue the process.

Moving on to step 14:
When dividing 5610 by 877, we get 6 with a remainder of 348.
Put 6 as the next digit of the answer. 
Result so far: 45138.529076
Deduct 5262 from 5610 and we're left with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Advancing to step 15:
877 goes into 3480 3 times with a remainder of 849.
Record the quotient 3 as the next digit in the result. 
Result so far: 45138.5290763
The remainder is 849 after subtracting 2631 from 3480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8490, and continue the process.

Advancing to step 16:
8490 divided by 877 is 9 with a remainder of 597.
Use 9 as the next digit of our solution. 
Result so far: 45138.52907639
Subtracting 7893 from 8490 leaves us with 597.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5970, and continue the process.

The final result is 45138.52907639 with a remainder of 5.97e-07.