Let's divide 51489741 by 877
The aim is to understand the frequency of 877 in 51489741.

Advancing to step 1:
When dividing 5 by 877, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 877

Advancing to step 2:
877 goes into 51 0 times with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Take the next digit (4) from the dividend and append it to 51, then repeat: 514 / 877

Step 3:
When dividing 514 by 877, we get 0 with a remainder of 514.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 514 after subtracting 0 from 514.
Fetch the next digit (8) from the dividend, attach it to 514 and continue: 5148 / 877

On to step 4:
5148 divided by 877 is 5 with a remainder of 763.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 4385 from 5148 and we're left with 763.
Include the next digit (9) from the dividend after 763, then repeat: 7639 / 877

Let's proceed to step 5:
877 can be fit into 7639 8 times, resulting in a remainder of 623.
Put 8 as the next digit of the answer. 
Result so far: 58.0
Subtract 7016 from 7639 to get 623.
Include the next digit (7) from the dividend after 623, then repeat: 6237 / 877

Moving on to step 6:
877 can be fit into 6237 7 times, resulting in a remainder of 98.
Put 7 as the next digit of the answer. 
Result so far: 587.0
The remainder is 98 after subtracting 6139 from 6237.
Append the next digit (4) from the dividend to 98 and continue with: 984 / 877

Going ahead to step 7:
984 divided by 877 is 1 with a remainder of 107.
The next digit of our result is 1. 
Result so far: 5871.0
Subtracting 877 from 984 leaves us with 107.
Take the next digit (1) from the dividend and append it to 107, then repeat: 1071 / 877

Advancing to step 8:
1071 divided by 877 is 1 with a remainder of 194.
Write down 1 as next digit of the result. 
Result so far: 58711.0
Deduct 877 from 1071 and we're left with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Advancing to step 9:
877 can be fit into 1940 2 times, resulting in a remainder of 186.
The next digit of our result is 2. 
Result so far: 58711.2
If we subtract 1754 from 1940, we get 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Advancing to step 10:
The number 877 fits into 1860 2 times, leaving a remainder of 106.
Record the quotient 2 as the next digit in the result. 
Result so far: 58711.22
If we subtract 1754 from 1860, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

The quotient of the division is 58711.22, and the remainder is 0.106.