Let's divide 77248751 by 420
We want to divide 77248751 by 420.

On to step 1:
If we divide 7 by 420, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 420

Advancing to step 2:
When dividing 77 by 420, we get 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Include the next digit (2) from the dividend after 77, then repeat: 772 / 420

Step 3:
772 divided by 420 is 1 with a remainder of 352.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 420 from 772, we get 352.
Bring next digit (4) of the dividend behind the 352 and repeat the process: 3524 / 420

Let's proceed to step 4:
The number 420 fits into 3524 8 times, leaving a remainder of 164.
The next digit of our result is 8. 
Result so far: 18.0
Deduct 3360 from 3524 and we're left with 164.
Bring next digit (8) of the dividend behind the 164 and repeat the process: 1648 / 420

Advancing to step 5:
When dividing 1648 by 420, we get 3 with a remainder of 388.
Write down 3 as next digit of the result. 
Result so far: 183.0
If we take 1260 away from 1648, we end up with 388.
Bring next digit (7) of the dividend behind the 388 and repeat the process: 3887 / 420

Let's proceed to step 6:
If we divide 3887 by 420, we get 9 and a remainder of 107.
Put 9 as the next digit of the answer. 
Result so far: 1839.0
The remainder is 107 after subtracting 3780 from 3887.
Fetch the next digit (5) from the dividend, attach it to 107 and continue: 1075 / 420

Let's proceed to step 7:
420 goes into 1075 2 times with a remainder of 235.
Write down 2 as next digit of the result. 
Result so far: 18392.0
Subtracting 840 from 1075 leaves us with 235.
Append the next digit (1) from the dividend to 235 and continue with: 2351 / 420

Moving on to step 8:
If we divide 2351 by 420, we get 5 and a remainder of 251.
Write down 5 as next digit of the result. 
Result so far: 183925.0
The remainder is 251 after subtracting 2100 from 2351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Step 9:
2510 divided by 420 is 5 with a remainder of 410.
Put 5 as the next digit of the answer. 
Result so far: 183925.5
If we subtract 2100 from 2510, 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.

Step 10:
4100 divided by 420 is 9 with a remainder of 320.
The next digit of our result is 9. 
Result so far: 183925.59
If we subtract 3780 from 4100, we 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 11:
420 goes into 3200 7 times with a remainder of 260.
Write down 7 as next digit of the result. 
Result so far: 183925.597
Subtracting 2940 from 3200 leaves us 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.

Going ahead to step 12:
If we divide 2600 by 420, we get 6 and a remainder of 80.
The next digit of our result is 6. 
Result so far: 183925.5976
If we subtract 2520 from 2600, we get 80.
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 13:
The number 420 fits into 800 1 times, leaving a remainder of 380.
The number 1 becomes the next digit in our result. 
Result so far: 183925.59761
Subtract 420 from 800 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 14:
420 can be fit into 3800 9 times, resulting in a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 183925.597619
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.

Advancing to step 15:
The number 420 fits into 200 0 times, leaving a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 183925.597619
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.

Advancing to step 16:
420 can be fit into 2000 4 times, resulting in a remainder of 320.
The number 4 becomes the next digit in our result. 
Result so far: 183925.59761904
Subtracting 1680 from 2000 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final outcome is 183925.59761904, with a leftover of 3.2e-07.