Let's divide 51104750 by 420
Our goal is to divide 51104750 by 420.

Step 1:
If we divide 5 by 420, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 420

On to step 2:
If we divide 51 by 420, we get 0 and a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Fetch the next digit (1) from the dividend, attach it to 51 and continue: 511 / 420

Moving on to step 3:
420 goes into 511 1 times with a remainder of 91.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 91 after subtracting 420 from 511.
Include the next digit (0) from the dividend after 91, then repeat: 910 / 420

Advancing to step 4:
910 divided by 420 is 2 with a remainder of 70.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 840 from 910 to get 70.
Fetch the next digit (4) from the dividend, attach it to 70 and continue: 704 / 420

Advancing to step 5:
420 can be fit into 704 1 times, resulting in a remainder of 284.
Put 1 as the next digit of the answer. 
Result so far: 121.0
Subtracting 420 from 704 leaves us with 284.
Append the next digit (7) from the dividend to 284 and continue with: 2847 / 420

On to step 6:
420 can be fit into 2847 6 times, resulting in a remainder of 327.
Record the quotient 6 as the next digit in the result. 
Result so far: 1216.0
Subtract 2520 from 2847 to get 327.
Fetch the next digit (5) from the dividend, attach it to 327 and continue: 3275 / 420

Moving on to step 7:
420 can be fit into 3275 7 times, resulting in a remainder of 335.
Put 7 as the next digit of the answer. 
Result so far: 12167.0
The remainder is 335 after subtracting 2940 from 3275.
Append the next digit (0) from the dividend to 335 and continue with: 3350 / 420

Advancing to step 8:
The number 420 fits into 3350 7 times, leaving a remainder of 410.
The next digit of our result is 7. 
Result so far: 121677.0
If we subtract 2940 from 3350, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Let's proceed to step 9:
420 can be fit into 4100 9 times, resulting in a remainder of 320.
The number 9 becomes the next digit in our result. 
Result so far: 121677.9
Subtract 3780 from 4100 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 10:
If we divide 3200 by 420, we get 7 and a remainder of 260.
The next digit of our result is 7. 
Result so far: 121677.97
If we take 2940 away from 3200, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 11:
420 goes into 2600 6 times with a remainder of 80.
Put 6 as the next digit of the answer. 
Result so far: 121677.976
The remainder is 80 after subtracting 2520 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 12:
If we divide 800 by 420, we get 1 and a remainder of 380.
Record the quotient 1 as the next digit in the result. 
Result so far: 121677.9761
Subtracting 420 from 800 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 13:
420 goes into 3800 9 times with a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 121677.97619
Deduct 3780 from 3800 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
420 can be fit into 200 0 times, resulting in a remainder of 200.
The next digit of our result is 0. 
Result so far: 121677.97619
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 15:
420 can be fit into 2000 4 times, resulting in a remainder of 320.
Use 4 as the next digit of our solution. 
Result so far: 121677.9761904
Subtract 1680 from 2000 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 16:
The number 420 fits into 3200 7 times, leaving a remainder of 260.
The next digit of our result is 7. 
Result so far: 121677.97619047
If we take 2940 away from 3200, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

The quotient of the division is 121677.97619047, and the remainder is 2.6e-07.