71251372 ÷ 423 
Let's see how many times 423 fits into 71251372.

Step 1:
423 goes into 7 0 times with 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.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 423

Step 2:
423 can be fit into 71 0 times, resulting in a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Bring next digit (2) of the dividend behind the 71 and repeat the process: 712 / 423

Advancing to step 3:
When dividing 712 by 423, we get 1 with a remainder of 289.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 423 from 712 leaves us with 289.
Bring next digit (5) of the dividend behind the 289 and repeat the process: 2895 / 423

On to step 4:
The number 423 fits into 2895 6 times, leaving a remainder of 357.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 2538 from 2895 and we're left with 357.
Fetch the next digit (1) from the dividend, attach it to 357 and continue: 3571 / 423

Step 5:
423 goes into 3571 8 times with a remainder of 187.
Record the quotient 8 as the next digit in the result. 
Result so far: 168.0
The remainder is 187 after subtracting 3384 from 3571.
Grab the next digit (3) from the dividend, add it to 187, then carry on: 1873 / 423

Let's proceed to step 6:
1873 divided by 423 is 4 with a remainder of 181.
The next digit of our result is 4. 
Result so far: 1684.0
If we take 1692 away from 1873, we end up with 181.
Fetch the next digit (7) from the dividend, attach it to 181 and continue: 1817 / 423

Advancing to step 7:
423 goes into 1817 4 times with a remainder of 125.
Record the quotient 4 as the next digit in the result. 
Result so far: 16844.0
Subtract 1692 from 1817 to get 125.
Grab the next digit (2) from the dividend, add it to 125, then carry on: 1252 / 423

Advancing to step 8:
When dividing 1252 by 423, we get 2 with a remainder of 406.
Put 2 as the next digit of the answer. 
Result so far: 168442.0
Subtract 846 from 1252 to get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Going ahead to step 9:
The number 423 fits into 4060 9 times, leaving a remainder of 253.
Write down 9 as next digit of the result. 
Result so far: 168442.9
Subtract 3807 from 4060 to get 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Going ahead to step 10:
2530 divided by 423 is 5 with a remainder of 415.
Write down 5 as next digit of the result. 
Result so far: 168442.95
Subtract 2115 from 2530 to get 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Moving on to step 11:
When dividing 4150 by 423, we get 9 with a remainder of 343.
Use 9 as the next digit of our solution. 
Result so far: 168442.959
Deduct 3807 from 4150 and we're left with 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Advancing to step 12:
423 goes into 3430 8 times with a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 168442.9598
If we subtract 3384 from 3430, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 13:
When dividing 460 by 423, we get 1 with a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 168442.95981
If we subtract 423 from 460, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 14:
370 divided by 423 is 0 with a remainder of 370.
Use 0 as the next digit of our solution. 
Result so far: 168442.95981
If we take 0 away from 370, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Moving on to step 15:
If we divide 3700 by 423, we get 8 and a remainder of 316.
Put 8 as the next digit of the answer. 
Result so far: 168442.9598108
Deduct 3384 from 3700 and we're left with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Going ahead to step 16:
423 can be fit into 3160 7 times, resulting in a remainder of 199.
Use 7 as the next digit of our solution. 
Result so far: 168442.95981087
Subtract 2961 from 3160 to get 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

The final outcome is 168442.95981087, with a leftover of 1.99e-07.