We look at the division of 79249560 by 420 
We want to divide 79249560 by 420.

Going ahead to step 1:
If we divide 7 by 420, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 420

Let's proceed to step 2:
420 can be fit into 79 0 times, resulting in a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 79 to get 79.
Include the next digit (2) from the dividend after 79, then repeat: 792 / 420

Step 3:
792 divided by 420 is 1 with a remainder of 372.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 420 from 792 to get 372.
Grab the next digit (4) from the dividend, add it to 372, then carry on: 3724 / 420

Going ahead to step 4:
420 can be fit into 3724 8 times, resulting in a remainder of 364.
The next digit of our result is 8. 
Result so far: 18.0
Deduct 3360 from 3724 and we're left with 364.
Include the next digit (9) from the dividend after 364, then repeat: 3649 / 420

Advancing to step 5:
420 can be fit into 3649 8 times, resulting in a remainder of 289.
The next digit of our result is 8. 
Result so far: 188.0
Subtracting 3360 from 3649 leaves us with 289.
Grab the next digit (5) from the dividend, add it to 289, then carry on: 2895 / 420

On to step 6:
The number 420 fits into 2895 6 times, leaving a remainder of 375.
Use 6 as the next digit of our solution. 
Result so far: 1886.0
Deduct 2520 from 2895 and we're left with 375.
Include the next digit (6) from the dividend after 375, then repeat: 3756 / 420

Advancing to step 7:
When dividing 3756 by 420, we get 8 with a remainder of 396.
Write down 8 as next digit of the result. 
Result so far: 18868.0
If we take 3360 away from 3756, we end up with 396.
Append the next digit (0) from the dividend to 396 and continue with: 3960 / 420

Moving on to step 8:
The number 420 fits into 3960 9 times, leaving a remainder of 180.
Use 9 as the next digit of our solution. 
Result so far: 188689.0
Subtract 3780 from 3960 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 9:
The number 420 fits into 1800 4 times, leaving a remainder of 120.
The number 4 becomes the next digit in our result. 
Result so far: 188689.4
If we take 1680 away from 1800, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 10:
The number 420 fits into 1200 2 times, leaving a remainder of 360.
The number 2 becomes the next digit in our result. 
Result so far: 188689.42
Subtract 840 from 1200 to 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.

Let's proceed to step 11:
The number 420 fits into 3600 8 times, leaving a remainder of 240.
Use 8 as the next digit of our solution. 
Result so far: 188689.428
If we take 3360 away from 3600, 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.

Going ahead to step 12:
2400 divided by 420 is 5 with a remainder of 300.
The number 5 becomes the next digit in our result. 
Result so far: 188689.4285
Deduct 2100 from 2400 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 13:
420 can be fit into 3000 7 times, resulting in a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 188689.42857
If we subtract 2940 from 3000, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 14:
The number 420 fits into 600 1 times, leaving a remainder of 180.
Write down 1 as next digit of the result. 
Result so far: 188689.428571
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.

Going ahead to step 15:
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: 188689.4285714
If we subtract 1680 from 1800, we 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.

Step 16:
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: 188689.42857142
Subtract 840 from 1200 to 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.

In conclusion, the division gives 188689.42857142 with a balance of 3.6e-07.