Let's divide 79126377 by 420
We want to divide 79126377 by 420.

On to step 1:
When dividing 7 by 420, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 420

Going ahead to step 2:
420 goes into 79 0 times with a remainder of 79.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 79 after subtracting 0 from 79.
Include the next digit (1) from the dividend after 79, then repeat: 791 / 420

Step 3:
If we divide 791 by 420, we get 1 and a remainder of 371.
The next digit of our result is 1. 
Result so far: 1.0
If we take 420 away from 791, we end up with 371.
Append the next digit (2) from the dividend to 371 and continue with: 3712 / 420

Advancing to step 4:
The number 420 fits into 3712 8 times, leaving a remainder of 352.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
The remainder is 352 after subtracting 3360 from 3712.
Bring next digit (6) of the dividend behind the 352 and repeat the process: 3526 / 420

Step 5:
If we divide 3526 by 420, we get 8 and a remainder of 166.
The next digit of our result is 8. 
Result so far: 188.0
Subtracting 3360 from 3526 leaves us with 166.
Fetch the next digit (3) from the dividend, attach it to 166 and continue: 1663 / 420

Advancing to step 6:
1663 divided by 420 is 3 with a remainder of 403.
Put 3 as the next digit of the answer. 
Result so far: 1883.0
If we take 1260 away from 1663, we end up with 403.
Include the next digit (7) from the dividend after 403, then repeat: 4037 / 420

Let's proceed to step 7:
When dividing 4037 by 420, we get 9 with a remainder of 257.
The number 9 becomes the next digit in our result. 
Result so far: 18839.0
Subtracting 3780 from 4037 leaves us with 257.
Bring next digit (7) of the dividend behind the 257 and repeat the process: 2577 / 420

Let's proceed to step 8:
420 goes into 2577 6 times with a remainder of 57.
Record the quotient 6 as the next digit in the result. 
Result so far: 188396.0
Subtract 2520 from 2577 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 9:
420 can be fit into 570 1 times, resulting in a remainder of 150.
Use 1 as the next digit of our solution. 
Result so far: 188396.1
Deduct 420 from 570 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 10:
420 can be fit into 1500 3 times, resulting in a remainder of 240.
Record the quotient 3 as the next digit in the result. 
Result so far: 188396.13
If we take 1260 away from 1500, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 11:
The number 420 fits into 2400 5 times, leaving a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 188396.135
Subtract 2100 from 2400 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 12:
The number 420 fits into 3000 7 times, leaving a remainder of 60.
Put 7 as the next digit of the answer. 
Result so far: 188396.1357
The remainder is 60 after subtracting 2940 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
When dividing 600 by 420, we get 1 with a remainder of 180.
The number 1 becomes the next digit in our result. 
Result so far: 188396.13571
If we take 420 away from 600, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 14:
The number 420 fits into 1800 4 times, leaving a remainder of 120.
Put 4 as the next digit of the answer. 
Result so far: 188396.135714
Subtract 1680 from 1800 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 15:
If we divide 1200 by 420, we get 2 and a remainder of 360.
Write down 2 as next digit of the result. 
Result so far: 188396.1357142
If we subtract 840 from 1200, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 16:
The number 420 fits into 3600 8 times, leaving a remainder of 240.
Put 8 as the next digit of the answer. 
Result so far: 188396.13571428
The remainder is 240 after subtracting 3360 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

After the division, we end up with 188396.13571428 and a remainder of 2.4e-07.