We look at the division of 77525727 by 421 
We want to divide 77525727 by 421.

Step 1:
7 divided by 421 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 421

Moving on to step 2:
When dividing 77 by 421, we get 0 with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Include the next digit (5) from the dividend after 77, then repeat: 775 / 421

On to step 3:
775 divided by 421 is 1 with a remainder of 354.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 421 from 775 to get 354.
Bring next digit (2) of the dividend behind the 354 and repeat the process: 3542 / 421

On to step 4:
If we divide 3542 by 421, we get 8 and a remainder of 174.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Deduct 3368 from 3542 and we're left with 174.
Take the next digit (5) from the dividend and append it to 174, then repeat: 1745 / 421

Let's proceed to step 5:
421 can be fit into 1745 4 times, resulting in a remainder of 61.
Record the quotient 4 as the next digit in the result. 
Result so far: 184.0
The remainder is 61 after subtracting 1684 from 1745.
Append the next digit (7) from the dividend to 61 and continue with: 617 / 421

Advancing to step 6:
421 can be fit into 617 1 times, resulting in a remainder of 196.
The next digit of our result is 1. 
Result so far: 1841.0
Subtract 421 from 617 to get 196.
Fetch the next digit (2) from the dividend, attach it to 196 and continue: 1962 / 421

On to step 7:
421 goes into 1962 4 times with a remainder of 278.
Write down 4 as next digit of the result. 
Result so far: 18414.0
If we subtract 1684 from 1962, we get 278.
Bring next digit (7) of the dividend behind the 278 and repeat the process: 2787 / 421

On to step 8:
2787 divided by 421 is 6 with a remainder of 261.
Record the quotient 6 as the next digit in the result. 
Result so far: 184146.0
If we subtract 2526 from 2787, we get 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Moving on to step 9:
The number 421 fits into 2610 6 times, leaving a remainder of 84.
The next digit of our result is 6. 
Result so far: 184146.6
Subtracting 2526 from 2610 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 10:
840 divided by 421 is 1 with a remainder of 419.
Record the quotient 1 as the next digit in the result. 
Result so far: 184146.61
If we take 421 away from 840, we end up with 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Let's proceed to step 11:
421 can be fit into 4190 9 times, resulting in a remainder of 401.
The number 9 becomes the next digit in our result. 
Result so far: 184146.619
Subtracting 3789 from 4190 leaves us with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Moving on to step 12:
421 can be fit into 4010 9 times, resulting in a remainder of 221.
The next digit of our result is 9. 
Result so far: 184146.6199
If we subtract 3789 from 4010, we get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

In conclusion, the division gives 184146.6199 with a balance of 0.00221.