We look at the division of 73123924 by 213 
We want to figure out the number of times 73123924 can be divided by 213.

On to step 1:
7 divided by 213 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 213

On to step 2:
73 divided by 213 is 0 with a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 73, we end up with 73.
Bring next digit (1) of the dividend behind the 73 and repeat the process: 731 / 213

Going ahead to step 3:
When dividing 731 by 213, we get 3 with a remainder of 92.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 639 from 731, we get 92.
Include the next digit (2) from the dividend after 92, then repeat: 922 / 213

Going ahead to step 4:
If we divide 922 by 213, we get 4 and a remainder of 70.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
Subtract 852 from 922 to get 70.
Bring next digit (3) of the dividend behind the 70 and repeat the process: 703 / 213

Moving on to step 5:
When dividing 703 by 213, we get 3 with a remainder of 64.
The next digit of our result is 3. 
Result so far: 343.0
If we subtract 639 from 703, we get 64.
Grab the next digit (9) from the dividend, add it to 64, then carry on: 649 / 213

Advancing to step 6:
213 goes into 649 3 times with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 3433.0
If we subtract 639 from 649, we get 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 213

Going ahead to step 7:
213 goes into 102 0 times with a remainder of 102.
The number 0 becomes the next digit in our result. 
Result so far: 34330.0
If we take 0 away from 102, we end up with 102.
Append the next digit (4) from the dividend to 102 and continue with: 1024 / 213

Step 8:
213 can be fit into 1024 4 times, resulting in a remainder of 172.
Put 4 as the next digit of the answer. 
Result so far: 343304.0
Deduct 852 from 1024 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

On to step 9:
213 can be fit into 1720 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 343304.8
Subtracting 1704 from 1720 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
213 goes into 160 0 times with a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 343304.8
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 11:
213 goes into 1600 7 times with a remainder of 109.
Write down 7 as next digit of the result. 
Result so far: 343304.807
Deduct 1491 from 1600 and we're left with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Moving on to step 12:
If we divide 1090 by 213, we get 5 and a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 343304.8075
Subtracting 1065 from 1090 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 13:
If we divide 250 by 213, we get 1 and a remainder of 37.
The next digit of our result is 1. 
Result so far: 343304.80751
Subtracting 213 from 250 leaves us with 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 213 is 1 with a remainder of 157.
Write down 1 as next digit of the result. 
Result so far: 343304.807511
If we subtract 213 from 370, we get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

The final result is 343304.807511 with a remainder of 1.57e-05.