We divide 77905401 by 421
Our goal is to divide 77905401 by 421.

Going ahead to step 1:
The number 421 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 421

Step 2:
The number 421 fits into 77 0 times, leaving a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Fetch the next digit (9) from the dividend, attach it to 77 and continue: 779 / 421

Step 3:
421 goes into 779 1 times with a remainder of 358.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 421 away from 779, we end up with 358.
Include the next digit (0) from the dividend after 358, then repeat: 3580 / 421

On to step 4:
The number 421 fits into 3580 8 times, leaving a remainder of 212.
Write down 8 as next digit of the result. 
Result so far: 18.0
Subtracting 3368 from 3580 leaves us with 212.
Include the next digit (5) from the dividend after 212, then repeat: 2125 / 421

Advancing to step 5:
If we divide 2125 by 421, we get 5 and a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 185.0
Deduct 2105 from 2125 and we're left with 20.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 421

Moving on to step 6:
When dividing 204 by 421, we get 0 with a remainder of 204.
The number 0 becomes the next digit in our result. 
Result so far: 1850.0
Subtract 0 from 204 to get 204.
Append the next digit (0) from the dividend to 204 and continue with: 2040 / 421

Advancing to step 7:
2040 divided by 421 is 4 with a remainder of 356.
Write down 4 as next digit of the result. 
Result so far: 18504.0
If we subtract 1684 from 2040, we get 356.
Append the next digit (1) from the dividend to 356 and continue with: 3561 / 421

Advancing to step 8:
421 can be fit into 3561 8 times, resulting in a remainder of 193.
Write down 8 as next digit of the result. 
Result so far: 185048.0
If we take 3368 away from 3561, we end up with 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Let's proceed to step 9:
If we divide 1930 by 421, we get 4 and a remainder of 246.
Use 4 as the next digit of our solution. 
Result so far: 185048.4
If we take 1684 away from 1930, we end up with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Advancing to step 10:
421 can be fit into 2460 5 times, resulting in a remainder of 355.
The number 5 becomes the next digit in our result. 
Result so far: 185048.45
The remainder is 355 after subtracting 2105 from 2460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

On to step 11:
421 goes into 3550 8 times with a remainder of 182.
The number 8 becomes the next digit in our result. 
Result so far: 185048.458
Subtracting 3368 from 3550 leaves us with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

On to step 12:
The number 421 fits into 1820 4 times, leaving a remainder of 136.
Use 4 as the next digit of our solution. 
Result so far: 185048.4584
Subtracting 1684 from 1820 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 13:
When dividing 1360 by 421, we get 3 with a remainder of 97.
The number 3 becomes the next digit in our result. 
Result so far: 185048.45843
If we take 1263 away from 1360, we end up with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Going ahead to step 14:
If we divide 970 by 421, we get 2 and a remainder of 128.
Record the quotient 2 as the next digit in the result. 
Result so far: 185048.458432
The remainder is 128 after subtracting 842 from 970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 15:
421 can be fit into 1280 3 times, resulting in a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 185048.4584323
If we subtract 1263 from 1280, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 16:
421 can be fit into 170 0 times, resulting in a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 185048.4584323
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Our division results in 185048.4584323 with a remaining 1.7e-07.