We look at the division of 73451699 by 320 
We want to figure out the number of times 73451699 can be divided by 320.

Moving on to step 1:
320 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 320

Step 2:
If we divide 73 by 320, we get 0 and a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Append the next digit (4) from the dividend to 73 and continue with: 734 / 320

On to step 3:
The number 320 fits into 734 2 times, leaving a remainder of 94.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 640 from 734, we get 94.
Take the next digit (5) from the dividend and append it to 94, then repeat: 945 / 320

Going ahead to step 4:
320 can be fit into 945 2 times, resulting in a remainder of 305.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
The remainder is 305 after subtracting 640 from 945.
Grab the next digit (1) from the dividend, add it to 305, then carry on: 3051 / 320

Step 5:
320 goes into 3051 9 times with a remainder of 171.
The number 9 becomes the next digit in our result. 
Result so far: 229.0
Subtracting 2880 from 3051 leaves us with 171.
Append the next digit (6) from the dividend to 171 and continue with: 1716 / 320

On to step 6:
If we divide 1716 by 320, we get 5 and a remainder of 116.
Use 5 as the next digit of our solution. 
Result so far: 2295.0
If we subtract 1600 from 1716, we get 116.
Append the next digit (9) from the dividend to 116 and continue with: 1169 / 320

Advancing to step 7:
320 goes into 1169 3 times with a remainder of 209.
Write down 3 as next digit of the result. 
Result so far: 22953.0
The remainder is 209 after subtracting 960 from 1169.
Take the next digit (9) from the dividend and append it to 209, then repeat: 2099 / 320

Advancing to step 8:
320 goes into 2099 6 times with a remainder of 179.
Use 6 as the next digit of our solution. 
Result so far: 229536.0
The remainder is 179 after subtracting 1920 from 2099.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Let's proceed to step 9:
320 can be fit into 1790 5 times, resulting in a remainder of 190.
The number 5 becomes the next digit in our result. 
Result so far: 229536.5
Subtracting 1600 from 1790 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 10:
320 goes into 1900 5 times with a remainder of 300.
Put 5 as the next digit of the answer. 
Result so far: 229536.55
Deduct 1600 from 1900 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.

In conclusion, the division gives 229536.55 with a balance of 0.3.