We're dividing 72986642 by 420 
We're looking to find how many times 420 goes into 72986642.

Step 1:
The number 420 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 420

Step 2:
When dividing 72 by 420, we get 0 with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Fetch the next digit (9) from the dividend, attach it to 72 and continue: 729 / 420

Going ahead to step 3:
420 can be fit into 729 1 times, resulting in a remainder of 309.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 309 after subtracting 420 from 729.
Include the next digit (8) from the dividend after 309, then repeat: 3098 / 420

Let's proceed to step 4:
420 can be fit into 3098 7 times, resulting in a remainder of 158.
Use 7 as the next digit of our solution. 
Result so far: 17.0
The remainder is 158 after subtracting 2940 from 3098.
Append the next digit (6) from the dividend to 158 and continue with: 1586 / 420

Let's proceed to step 5:
If we divide 1586 by 420, we get 3 and a remainder of 326.
Use 3 as the next digit of our solution. 
Result so far: 173.0
Subtract 1260 from 1586 to get 326.
Fetch the next digit (6) from the dividend, attach it to 326 and continue: 3266 / 420

Step 6:
If we divide 3266 by 420, we get 7 and a remainder of 326.
Write down 7 as next digit of the result. 
Result so far: 1737.0
Deduct 2940 from 3266 and we're left with 326.
Include the next digit (4) from the dividend after 326, then repeat: 3264 / 420

Step 7:
420 goes into 3264 7 times with a remainder of 324.
The next digit of our result is 7. 
Result so far: 17377.0
Subtract 2940 from 3264 to get 324.
Grab the next digit (2) from the dividend, add it to 324, then carry on: 3242 / 420

Going ahead to step 8:
420 can be fit into 3242 7 times, resulting in a remainder of 302.
The number 7 becomes the next digit in our result. 
Result so far: 173777.0
Subtract 2940 from 3242 to get 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

On to step 9:
3020 divided by 420 is 7 with a remainder of 80.
Record the quotient 7 as the next digit in the result. 
Result so far: 173777.7
Subtracting 2940 from 3020 leaves us with 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 10:
420 goes into 800 1 times with a remainder of 380.
The next digit of our result is 1. 
Result so far: 173777.71
If we subtract 420 from 800, we 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.

Step 11:
If we divide 3800 by 420, we get 9 and a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 173777.719
If we subtract 3780 from 3800, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
420 can be fit into 200 0 times, resulting in a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 173777.719
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 13:
When dividing 2000 by 420, we get 4 with a remainder of 320.
The next digit of our result is 4. 
Result so far: 173777.71904
If we subtract 1680 from 2000, 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.

Let's proceed to step 14:
3200 divided by 420 is 7 with a remainder of 260.
Record the quotient 7 as the next digit in the result. 
Result so far: 173777.719047
Deduct 2940 from 3200 and we're left 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.

Let's proceed to step 15:
420 can be fit into 2600 6 times, resulting in a remainder of 80.
The next digit of our result is 6. 
Result so far: 173777.7190476
Deduct 2520 from 2600 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 16:
The number 420 fits into 800 1 times, leaving a remainder of 380.
The next digit of our result is 1. 
Result so far: 173777.71904761
The remainder is 380 after subtracting 420 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

After the division, we end up with 173777.71904761 and a remainder of 3.8e-07.